71680040

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{5653}}^1$

素因数の和:5981

約数の個数: 32

約数和(自身を含む): 161817480

約数和(自身を除く): 90137440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 5653, 6340, 11306, 12680, 22612, 28265, 45224, 56530, 113060, 226120, 1792001, 3584002, 7168004, 8960005, 14336008, 17920010, 35840020, 71680040]

約数ペア:

[(1, 71680040), (2, 35840020), (4, 17920010), (5, 14336008), (8, 8960005), (10, 7168004), (20, 3584002), (40, 1792001), (317, 226120), (634, 113060), (1268, 56530), (1585, 45224), (2536, 28265), (3170, 22612), (5653, 12680), (6340, 11306)]