7885909880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1\times {\mathrm{3221}}^1$

素因数の和:3960

約数の個数: 64

約数和(自身を含む): 17960201280

約数和(自身を除く): 10074291400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 631, 776, 970, 1262, 1940, 2524, 3155, 3221, 3880, 5048, 6310, 6442, 12620, 12884, 16105, 25240, 25768, 32210, 61207, 64420, 122414, 128840, 244828, 306035, 312437, 489656, 612070, 624874, 1224140, 1249748, 1562185, 2032451, 2448280, 2499496, 3124370, 4064902, 6248740, 8129804, 10162255, 12497480, 16259608, 20324510, 40649020, 81298040, 197147747, 394295494, 788590988, 985738735, 1577181976, 1971477470, 3942954940, 7885909880]

約数ペア:

[(1, 7885909880), (2, 3942954940), (4, 1971477470), (5, 1577181976), (8, 985738735), (10, 788590988), (20, 394295494), (40, 197147747), (97, 81298040), (194, 40649020), (388, 20324510), (485, 16259608), (631, 12497480), (776, 10162255), (970, 8129804), (1262, 6248740), (1940, 4064902), (2524, 3124370), (3155, 2499496), (3221, 2448280), (3880, 2032451), (5048, 1562185), (6310, 1249748), (6442, 1224140), (12620, 624874), (12884, 612070), (16105, 489656), (25240, 312437), (25768, 306035), (32210, 244828), (61207, 128840), (64420, 122414)]