520478840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{983}}^1$

素因数の和:1093

約数の個数: 128

約数和(自身を含む): 1405624320

約数和(自身を除く): 885145480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 217, 244, 248, 280, 305, 310, 427, 434, 488, 610, 620, 854, 868, 983, 1085, 1220, 1240, 1708, 1736, 1891, 1966, 2135, 2170, 2440, 3416, 3782, 3932, 4270, 4340, 4915, 6881, 7564, 7864, 8540, 8680, 9455, 9830, 13237, 13762, 15128, 17080, 18910, 19660, 26474, 27524, 30473, 34405, 37820, 39320, 52948, 55048, 59963, 60946, 66185, 68810, 75640, 105896, 119926, 121892, 132370, 137620, 152365, 213311, 239852, 243784, 264740, 275240, 299815, 304730, 419741, 426622, 479704, 529480, 599630, 609460, 839482, 853244, 1066555, 1199260, 1218920, 1678964, 1706488, 1858853, 2098705, 2133110, 2398520, 3357928, 3717706, 4197410, 4266220, 7435412, 8394820, 8532440, 9294265, 13011971, 14870824, 16789640, 18588530, 26023942, 37177060, 52047884, 65059855, 74354120, 104095768, 130119710, 260239420, 520478840]

約数ペア:

[(1, 520478840), (2, 260239420), (4, 130119710), (5, 104095768), (7, 74354120), (8, 65059855), (10, 52047884), (14, 37177060), (20, 26023942), (28, 18588530), (31, 16789640), (35, 14870824), (40, 13011971), (56, 9294265), (61, 8532440), (62, 8394820), (70, 7435412), (122, 4266220), (124, 4197410), (140, 3717706), (155, 3357928), (217, 2398520), (244, 2133110), (248, 2098705), (280, 1858853), (305, 1706488), (310, 1678964), (427, 1218920), (434, 1199260), (488, 1066555), (610, 853244), (620, 839482), (854, 609460), (868, 599630), (983, 529480), (1085, 479704), (1220, 426622), (1240, 419741), (1708, 304730), (1736, 299815), (1891, 275240), (1966, 264740), (2135, 243784), (2170, 239852), (2440, 213311), (3416, 152365), (3782, 137620), (3932, 132370), (4270, 121892), (4340, 119926), (4915, 105896), (6881, 75640), (7564, 68810), (7864, 66185), (8540, 60946), (8680, 59963), (9455, 55048), (9830, 52948), (13237, 39320), (13762, 37820), (15128, 34405), (17080, 30473), (18910, 27524), (19660, 26474)]