85839880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1091}}^1$

素因数の和:1390

約数の個数: 64

約数和(自身を含む): 221719680

約数和(自身を除く): 135879800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 1091, 1124, 1405, 1967, 2182, 2248, 2810, 3934, 4364, 5455, 5620, 7637, 7868, 8728, 9835, 10910, 11240, 15274, 15736, 19670, 21820, 30548, 38185, 39340, 43640, 61096, 76370, 78680, 152740, 305480, 306571, 613142, 1226284, 1532855, 2145997, 2452568, 3065710, 4291994, 6131420, 8583988, 10729985, 12262840, 17167976, 21459970, 42919940, 85839880]

約数ペア:

[(1, 85839880), (2, 42919940), (4, 21459970), (5, 17167976), (7, 12262840), (8, 10729985), (10, 8583988), (14, 6131420), (20, 4291994), (28, 3065710), (35, 2452568), (40, 2145997), (56, 1532855), (70, 1226284), (140, 613142), (280, 306571), (281, 305480), (562, 152740), (1091, 78680), (1124, 76370), (1405, 61096), (1967, 43640), (2182, 39340), (2248, 38185), (2810, 30548), (3934, 21820), (4364, 19670), (5455, 15736), (5620, 15274), (7637, 11240), (7868, 10910), (8728, 9835)]