20784795720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{883}}^1$

素因数の和:1180

約数の個数: 256

約数和(自身を含む): 68434329600

約数和(自身を除く): 47649533880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 79, 104, 120, 130, 156, 158, 191, 195, 237, 260, 312, 316, 382, 390, 395, 474, 520, 573, 632, 764, 780, 790, 883, 948, 955, 1027, 1146, 1185, 1528, 1560, 1580, 1766, 1896, 1910, 2054, 2292, 2370, 2483, 2649, 2865, 3081, 3160, 3532, 3820, 4108, 4415, 4584, 4740, 4966, 5135, 5298, 5730, 6162, 7064, 7449, 7640, 8216, 8830, 9480, 9932, 10270, 10596, 11460, 11479, 12324, 12415, 13245, 14898, 15089, 15405, 17660, 19864, 20540, 21192, 22920, 22958, 24648, 24830, 26490, 29796, 30178, 30810, 34437, 35320, 37245, 41080, 45267, 45916, 49660, 52980, 57395, 59592, 60356, 61620, 68874, 69757, 74490, 75445, 90534, 91832, 99320, 105960, 114790, 120712, 123240, 137748, 139514, 148980, 150890, 168653, 172185, 181068, 196157, 209271, 226335, 229580, 275496, 279028, 297960, 301780, 337306, 344370, 348785, 362136, 392314, 418542, 452670, 459160, 505959, 558056, 588471, 603560, 674612, 688740, 697570, 784628, 837084, 843265, 905340, 906841, 980785, 1011918, 1046355, 1176942, 1349224, 1377480, 1395140, 1569256, 1674168, 1686530, 1810680, 1813682, 1961570, 2023836, 2092710, 2192489, 2353884, 2529795, 2720523, 2790280, 2942355, 3373060, 3627364, 3923140, 4047672, 4185420, 4384978, 4534205, 4707768, 5059590, 5441046, 5884710, 6577467, 6746120, 7254728, 7846280, 8370840, 8769956, 9068410, 10119180, 10882092, 10962445, 11769420, 13154934, 13323587, 13602615, 17539912, 18136820, 20238360, 21764184, 21924890, 23538840, 26309868, 26647174, 27205230, 32887335, 36273640, 39970761, 43849780, 52619736, 53294348, 54410460, 65774670, 66617935, 79941522, 87699560, 106588696, 108820920, 131549340, 133235870, 159883044, 173206631, 199853805, 263098680, 266471740, 319766088, 346413262, 399707610, 519619893, 532943480, 692826524, 799415220, 866033155, 1039239786, 1385653048, 1598830440, 1732066310, 2078479572, 2598099465, 3464132620, 4156959144, 5196198930, 6928265240, 10392397860, 20784795720]

約数ペア:

[(1, 20784795720), (2, 10392397860), (3, 6928265240), (4, 5196198930), (5, 4156959144), (6, 3464132620), (8, 2598099465), (10, 2078479572), (12, 1732066310), (13, 1598830440), (15, 1385653048), (20, 1039239786), (24, 866033155), (26, 799415220), (30, 692826524), (39, 532943480), (40, 519619893), (52, 399707610), (60, 346413262), (65, 319766088), (78, 266471740), (79, 263098680), (104, 199853805), (120, 173206631), (130, 159883044), (156, 133235870), (158, 131549340), (191, 108820920), (195, 106588696), (237, 87699560), (260, 79941522), (312, 66617935), (316, 65774670), (382, 54410460), (390, 53294348), (395, 52619736), (474, 43849780), (520, 39970761), (573, 36273640), (632, 32887335), (764, 27205230), (780, 26647174), (790, 26309868), (883, 23538840), (948, 21924890), (955, 21764184), (1027, 20238360), (1146, 18136820), (1185, 17539912), (1528, 13602615), (1560, 13323587), (1580, 13154934), (1766, 11769420), (1896, 10962445), (1910, 10882092), (2054, 10119180), (2292, 9068410), (2370, 8769956), (2483, 8370840), (2649, 7846280), (2865, 7254728), (3081, 6746120), (3160, 6577467), (3532, 5884710), (3820, 5441046), (4108, 5059590), (4415, 4707768), (4584, 4534205), (4740, 4384978), (4966, 4185420), (5135, 4047672), (5298, 3923140), (5730, 3627364), (6162, 3373060), (7064, 2942355), (7449, 2790280), (7640, 2720523), (8216, 2529795), (8830, 2353884), (9480, 2192489), (9932, 2092710), (10270, 2023836), (10596, 1961570), (11460, 1813682), (11479, 1810680), (12324, 1686530), (12415, 1674168), (13245, 1569256), (14898, 1395140), (15089, 1377480), (15405, 1349224), (17660, 1176942), (19864, 1046355), (20540, 1011918), (21192, 980785), (22920, 906841), (22958, 905340), (24648, 843265), (24830, 837084), (26490, 784628), (29796, 697570), (30178, 688740), (30810, 674612), (34437, 603560), (35320, 588471), (37245, 558056), (41080, 505959), (45267, 459160), (45916, 452670), (49660, 418542), (52980, 392314), (57395, 362136), (59592, 348785), (60356, 344370), (61620, 337306), (68874, 301780), (69757, 297960), (74490, 279028), (75445, 275496), (90534, 229580), (91832, 226335), (99320, 209271), (105960, 196157), (114790, 181068), (120712, 172185), (123240, 168653), (137748, 150890), (139514, 148980)]