80784280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{317}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 190952640

約数和(自身を除く): 110168360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 277, 317, 460, 554, 634, 920, 1108, 1268, 1385, 1585, 2216, 2536, 2770, 3170, 5540, 6340, 6371, 7291, 11080, 12680, 12742, 14582, 25484, 29164, 31855, 36455, 50968, 58328, 63710, 72910, 87809, 127420, 145820, 175618, 254840, 291640, 351236, 439045, 702472, 878090, 1756180, 2019607, 3512360, 4039214, 8078428, 10098035, 16156856, 20196070, 40392140, 80784280]

約数ペア:

[(1, 80784280), (2, 40392140), (4, 20196070), (5, 16156856), (8, 10098035), (10, 8078428), (20, 4039214), (23, 3512360), (40, 2019607), (46, 1756180), (92, 878090), (115, 702472), (184, 439045), (230, 351236), (277, 291640), (317, 254840), (460, 175618), (554, 145820), (634, 127420), (920, 87809), (1108, 72910), (1268, 63710), (1385, 58328), (1585, 50968), (2216, 36455), (2536, 31855), (2770, 29164), (3170, 25484), (5540, 14582), (6340, 12742), (6371, 12680), (7291, 11080)]