21280939520

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:297

約数の個数: 320

約数和(自身を含む): 56002129920

約数和(自身を除く): 34721190400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 89, 92, 115, 124, 128, 131, 155, 160, 178, 184, 230, 248, 256, 262, 310, 320, 356, 368, 445, 460, 496, 512, 524, 620, 640, 655, 712, 713, 736, 890, 920, 992, 1048, 1240, 1280, 1310, 1424, 1426, 1472, 1780, 1840, 1984, 2047, 2096, 2480, 2560, 2620, 2759, 2848, 2852, 2944, 3013, 3560, 3565, 3680, 3968, 4061, 4094, 4192, 4960, 5240, 5518, 5696, 5704, 5888, 6026, 7120, 7130, 7360, 7936, 8122, 8188, 8384, 9920, 10235, 10480, 11036, 11392, 11408, 11659, 11776, 12052, 13795, 14240, 14260, 14720, 15065, 15872, 16244, 16376, 16768, 19840, 20305, 20470, 20960, 22072, 22784, 22816, 23318, 24104, 27590, 28480, 28520, 29440, 30130, 32488, 32752, 33536, 39680, 40610, 40940, 41920, 44144, 45568, 45632, 46636, 48208, 55180, 56960, 57040, 58295, 58880, 60260, 63457, 64976, 65504, 67072, 79360, 81220, 81880, 83840, 88288, 91264, 93272, 93403, 96416, 110360, 113920, 114080, 116590, 120520, 126914, 129952, 131008, 162440, 163760, 167680, 176576, 182528, 186544, 186806, 192832, 220720, 227840, 228160, 233180, 241040, 253828, 259904, 262016, 268157, 317285, 324880, 327520, 335360, 353152, 361429, 365056, 373088, 373612, 385664, 441440, 456320, 466360, 467015, 482080, 507656, 519808, 524032, 536314, 634570, 649760, 655040, 706304, 722858, 746176, 747224, 771328, 882880, 912640, 932720, 934030, 964160, 1015312, 1039616, 1048064, 1072628, 1269140, 1299520, 1310080, 1340785, 1412608, 1445716, 1492352, 1494448, 1542656, 1765760, 1807145, 1825280, 1865440, 1868060, 1928320, 2030624, 2079232, 2145256, 2538280, 2599040, 2620160, 2681570, 2891432, 2984704, 2988896, 3531520, 3614290, 3730880, 3736120, 3856640, 4061248, 4290512, 5076560, 5198080, 5240320, 5363140, 5782864, 5969408, 5977792, 7063040, 7228580, 7461760, 7472240, 7713280, 8122496, 8312867, 8581024, 10153120, 10396160, 10726280, 11565728, 11955584, 14457160, 14923520, 14944480, 16244992, 16625734, 17162048, 20306240, 21452560, 23131456, 23911168, 28914320, 29847040, 29888960, 32489984, 33251468, 34324096, 40612480, 41564335, 42905120, 46262912, 47822336, 57828640, 59777920, 66502936, 68648192, 81224960, 83128670, 85810240, 92525824, 115657280, 119555840, 133005872, 137296384, 162449920, 166257340, 171620480, 185051648, 231314560, 239111680, 266011744, 332514680, 343240960, 462629120, 532023488, 665029360, 686481920, 925258240, 1064046976, 1330058720, 2128093952, 2660117440, 4256187904, 5320234880, 10640469760, 21280939520]

約数ペア:

[(1, 21280939520), (2, 10640469760), (4, 5320234880), (5, 4256187904), (8, 2660117440), (10, 2128093952), (16, 1330058720), (20, 1064046976), (23, 925258240), (31, 686481920), (32, 665029360), (40, 532023488), (46, 462629120), (62, 343240960), (64, 332514680), (80, 266011744), (89, 239111680), (92, 231314560), (115, 185051648), (124, 171620480), (128, 166257340), (131, 162449920), (155, 137296384), (160, 133005872), (178, 119555840), (184, 115657280), (230, 92525824), (248, 85810240), (256, 83128670), (262, 81224960), (310, 68648192), (320, 66502936), (356, 59777920), (368, 57828640), (445, 47822336), (460, 46262912), (496, 42905120), (512, 41564335), (524, 40612480), (620, 34324096), (640, 33251468), (655, 32489984), (712, 29888960), (713, 29847040), (736, 28914320), (890, 23911168), (920, 23131456), (992, 21452560), (1048, 20306240), (1240, 17162048), (1280, 16625734), (1310, 16244992), (1424, 14944480), (1426, 14923520), (1472, 14457160), (1780, 11955584), (1840, 11565728), (1984, 10726280), (2047, 10396160), (2096, 10153120), (2480, 8581024), (2560, 8312867), (2620, 8122496), (2759, 7713280), (2848, 7472240), (2852, 7461760), (2944, 7228580), (3013, 7063040), (3560, 5977792), (3565, 5969408), (3680, 5782864), (3968, 5363140), (4061, 5240320), (4094, 5198080), (4192, 5076560), (4960, 4290512), (5240, 4061248), (5518, 3856640), (5696, 3736120), (5704, 3730880), (5888, 3614290), (6026, 3531520), (7120, 2988896), (7130, 2984704), (7360, 2891432), (7936, 2681570), (8122, 2620160), (8188, 2599040), (8384, 2538280), (9920, 2145256), (10235, 2079232), (10480, 2030624), (11036, 1928320), (11392, 1868060), (11408, 1865440), (11659, 1825280), (11776, 1807145), (12052, 1765760), (13795, 1542656), (14240, 1494448), (14260, 1492352), (14720, 1445716), (15065, 1412608), (15872, 1340785), (16244, 1310080), (16376, 1299520), (16768, 1269140), (19840, 1072628), (20305, 1048064), (20470, 1039616), (20960, 1015312), (22072, 964160), (22784, 934030), (22816, 932720), (23318, 912640), (24104, 882880), (27590, 771328), (28480, 747224), (28520, 746176), (29440, 722858), (30130, 706304), (32488, 655040), (32752, 649760), (33536, 634570), (39680, 536314), (40610, 524032), (40940, 519808), (41920, 507656), (44144, 482080), (45568, 467015), (45632, 466360), (46636, 456320), (48208, 441440), (55180, 385664), (56960, 373612), (57040, 373088), (58295, 365056), (58880, 361429), (60260, 353152), (63457, 335360), (64976, 327520), (65504, 324880), (67072, 317285), (79360, 268157), (81220, 262016), (81880, 259904), (83840, 253828), (88288, 241040), (91264, 233180), (93272, 228160), (93403, 227840), (96416, 220720), (110360, 192832), (113920, 186806), (114080, 186544), (116590, 182528), (120520, 176576), (126914, 167680), (129952, 163760), (131008, 162440)]