115214920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 267805440

約数和(自身を除く): 152590520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 163, 164, 205, 326, 328, 410, 431, 652, 815, 820, 862, 1304, 1630, 1640, 1724, 2155, 3260, 3448, 4310, 6520, 6683, 8620, 13366, 17240, 17671, 26732, 33415, 35342, 53464, 66830, 70253, 70684, 88355, 133660, 140506, 141368, 176710, 267320, 281012, 351265, 353420, 562024, 702530, 706840, 1405060, 2810120, 2880373, 5760746, 11521492, 14401865, 23042984, 28803730, 57607460, 115214920]

約数ペア:

[(1, 115214920), (2, 57607460), (4, 28803730), (5, 23042984), (8, 14401865), (10, 11521492), (20, 5760746), (40, 2880373), (41, 2810120), (82, 1405060), (163, 706840), (164, 702530), (205, 562024), (326, 353420), (328, 351265), (410, 281012), (431, 267320), (652, 176710), (815, 141368), (820, 140506), (862, 133660), (1304, 88355), (1630, 70684), (1640, 70253), (1724, 66830), (2155, 53464), (3260, 35342), (3448, 33415), (4310, 26732), (6520, 17671), (6683, 17240), (8620, 13366)]