71964040

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{17467}}^1$

素因数の和:17581

約数の個数: 32

約数和(自身を含む): 163500480

約数和(自身を除く): 91536440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 17467, 34934, 69868, 87335, 139736, 174670, 349340, 698680, 1799101, 3598202, 7196404, 8995505, 14392808, 17991010, 35982020, 71964040]

約数ペア:

[(1, 71964040), (2, 35982020), (4, 17991010), (5, 14392808), (8, 8995505), (10, 7196404), (20, 3598202), (40, 1799101), (103, 698680), (206, 349340), (412, 174670), (515, 139736), (824, 87335), (1030, 69868), (2060, 34934), (4120, 17467)]