205487360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 542387664

約数和(自身を除く): 336900304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 208, 212, 233, 256, 260, 265, 320, 416, 424, 466, 520, 530, 640, 689, 832, 848, 932, 1040, 1060, 1165, 1280, 1378, 1664, 1696, 1864, 2080, 2120, 2330, 2756, 3029, 3328, 3392, 3445, 3728, 4160, 4240, 4660, 5512, 6058, 6784, 6890, 7456, 8320, 8480, 9320, 11024, 12116, 12349, 13568, 13780, 14912, 15145, 16640, 16960, 18640, 22048, 24232, 24698, 27560, 29824, 30290, 33920, 37280, 44096, 48464, 49396, 55120, 59648, 60580, 61745, 67840, 74560, 88192, 96928, 98792, 110240, 121160, 123490, 149120, 160537, 176384, 193856, 197584, 220480, 242320, 246980, 298240, 321074, 387712, 395168, 440960, 484640, 493960, 642148, 775424, 790336, 802685, 881920, 969280, 987920, 1284296, 1580672, 1605370, 1938560, 1975840, 2568592, 3161344, 3210740, 3877120, 3951680, 5137184, 6421480, 7903360, 10274368, 12842960, 15806720, 20548736, 25685920, 41097472, 51371840, 102743680, 205487360]

約数ペア:

[(1, 205487360), (2, 102743680), (4, 51371840), (5, 41097472), (8, 25685920), (10, 20548736), (13, 15806720), (16, 12842960), (20, 10274368), (26, 7903360), (32, 6421480), (40, 5137184), (52, 3951680), (53, 3877120), (64, 3210740), (65, 3161344), (80, 2568592), (104, 1975840), (106, 1938560), (128, 1605370), (130, 1580672), (160, 1284296), (208, 987920), (212, 969280), (233, 881920), (256, 802685), (260, 790336), (265, 775424), (320, 642148), (416, 493960), (424, 484640), (466, 440960), (520, 395168), (530, 387712), (640, 321074), (689, 298240), (832, 246980), (848, 242320), (932, 220480), (1040, 197584), (1060, 193856), (1165, 176384), (1280, 160537), (1378, 149120), (1664, 123490), (1696, 121160), (1864, 110240), (2080, 98792), (2120, 96928), (2330, 88192), (2756, 74560), (3029, 67840), (3328, 61745), (3392, 60580), (3445, 59648), (3728, 55120), (4160, 49396), (4240, 48464), (4660, 44096), (5512, 37280), (6058, 33920), (6784, 30290), (6890, 29824), (7456, 27560), (8320, 24698), (8480, 24232), (9320, 22048), (11024, 18640), (12116, 16960), (12349, 16640), (13568, 15145), (13780, 14912)]