21821539840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2099}}^1$

素因数の和:2284

約数の個数: 160

約数和(自身を含む): 54446515200

約数和(自身を除く): 32624975360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 131, 155, 160, 248, 256, 262, 310, 320, 496, 512, 524, 620, 640, 655, 992, 1048, 1240, 1280, 1310, 1984, 2096, 2099, 2480, 2560, 2620, 3968, 4061, 4192, 4198, 4960, 5240, 7936, 8122, 8384, 8396, 9920, 10480, 10495, 15872, 16244, 16768, 16792, 19840, 20305, 20960, 20990, 32488, 33536, 33584, 39680, 40610, 41920, 41980, 64976, 65069, 67072, 67168, 79360, 81220, 83840, 83960, 129952, 130138, 134336, 162440, 167680, 167920, 259904, 260276, 268672, 274969, 324880, 325345, 335360, 335840, 519808, 520552, 537344, 549938, 649760, 650690, 671680, 1039616, 1041104, 1074688, 1099876, 1299520, 1301380, 1343360, 1374845, 2079232, 2082208, 2199752, 2599040, 2602760, 2686720, 2749690, 4164416, 4399504, 5198080, 5205520, 5373440, 5499380, 8328832, 8524039, 8799008, 10396160, 10411040, 10998760, 16657664, 17048078, 17598016, 20822080, 21997520, 33315328, 34096156, 35196032, 41644160, 42620195, 43995040, 68192312, 70392064, 83288320, 85240390, 87990080, 136384624, 140784128, 166576640, 170480780, 175980160, 272769248, 340961560, 351960320, 545538496, 681923120, 703920640, 1091076992, 1363846240, 2182153984, 2727692480, 4364307968, 5455384960, 10910769920, 21821539840]

約数ペア:

[(1, 21821539840), (2, 10910769920), (4, 5455384960), (5, 4364307968), (8, 2727692480), (10, 2182153984), (16, 1363846240), (20, 1091076992), (31, 703920640), (32, 681923120), (40, 545538496), (62, 351960320), (64, 340961560), (80, 272769248), (124, 175980160), (128, 170480780), (131, 166576640), (155, 140784128), (160, 136384624), (248, 87990080), (256, 85240390), (262, 83288320), (310, 70392064), (320, 68192312), (496, 43995040), (512, 42620195), (524, 41644160), (620, 35196032), (640, 34096156), (655, 33315328), (992, 21997520), (1048, 20822080), (1240, 17598016), (1280, 17048078), (1310, 16657664), (1984, 10998760), (2096, 10411040), (2099, 10396160), (2480, 8799008), (2560, 8524039), (2620, 8328832), (3968, 5499380), (4061, 5373440), (4192, 5205520), (4198, 5198080), (4960, 4399504), (5240, 4164416), (7936, 2749690), (8122, 2686720), (8384, 2602760), (8396, 2599040), (9920, 2199752), (10480, 2082208), (10495, 2079232), (15872, 1374845), (16244, 1343360), (16768, 1301380), (16792, 1299520), (19840, 1099876), (20305, 1074688), (20960, 1041104), (20990, 1039616), (32488, 671680), (33536, 650690), (33584, 649760), (39680, 549938), (40610, 537344), (41920, 520552), (41980, 519808), (64976, 335840), (65069, 335360), (67072, 325345), (67168, 324880), (79360, 274969), (81220, 268672), (83840, 260276), (83960, 259904), (129952, 167920), (130138, 167680), (134336, 162440)]