215431320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{701}}^1$

素因数の和:925

約数の個数: 128

約数和(自身を含む): 700539840

約数和(自身を除く): 485108520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 197, 260, 312, 390, 394, 520, 591, 701, 780, 788, 985, 1182, 1402, 1560, 1576, 1970, 2103, 2364, 2561, 2804, 2955, 3505, 3940, 4206, 4728, 5122, 5608, 5910, 7010, 7683, 7880, 8412, 9113, 10244, 10515, 11820, 12805, 14020, 15366, 16824, 18226, 20488, 21030, 23640, 25610, 27339, 28040, 30732, 36452, 38415, 42060, 45565, 51220, 54678, 61464, 72904, 76830, 84120, 91130, 102440, 109356, 136695, 138097, 153660, 182260, 218712, 273390, 276194, 307320, 364520, 414291, 546780, 552388, 690485, 828582, 1093560, 1104776, 1380970, 1657164, 1795261, 2071455, 2761940, 3314328, 3590522, 4142910, 5385783, 5523880, 7181044, 8285820, 8976305, 10771566, 14362088, 16571640, 17952610, 21543132, 26928915, 35905220, 43086264, 53857830, 71810440, 107715660, 215431320]

約数ペア:

[(1, 215431320), (2, 107715660), (3, 71810440), (4, 53857830), (5, 43086264), (6, 35905220), (8, 26928915), (10, 21543132), (12, 17952610), (13, 16571640), (15, 14362088), (20, 10771566), (24, 8976305), (26, 8285820), (30, 7181044), (39, 5523880), (40, 5385783), (52, 4142910), (60, 3590522), (65, 3314328), (78, 2761940), (104, 2071455), (120, 1795261), (130, 1657164), (156, 1380970), (195, 1104776), (197, 1093560), (260, 828582), (312, 690485), (390, 552388), (394, 546780), (520, 414291), (591, 364520), (701, 307320), (780, 276194), (788, 273390), (985, 218712), (1182, 182260), (1402, 153660), (1560, 138097), (1576, 136695), (1970, 109356), (2103, 102440), (2364, 91130), (2561, 84120), (2804, 76830), (2955, 72904), (3505, 61464), (3940, 54678), (4206, 51220), (4728, 45565), (5122, 42060), (5608, 38415), (5910, 36452), (7010, 30732), (7683, 28040), (7880, 27339), (8412, 25610), (9113, 23640), (10244, 21030), (10515, 20488), (11820, 18226), (12805, 16824), (14020, 15366)]