71091728

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{541}}^1$

素因数の和:783

約数の個数: 40

約数和(自身を含む): 141943296

約数和(自身を除く): 70851568

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 191, 344, 382, 541, 688, 764, 1082, 1528, 2164, 3056, 4328, 8213, 8656, 16426, 23263, 32852, 46526, 65704, 93052, 103331, 131408, 186104, 206662, 372208, 413324, 826648, 1653296, 4443233, 8886466, 17772932, 35545864, 71091728]

約数ペア:

[(1, 71091728), (2, 35545864), (4, 17772932), (8, 8886466), (16, 4443233), (43, 1653296), (86, 826648), (172, 413324), (191, 372208), (344, 206662), (382, 186104), (541, 131408), (688, 103331), (764, 93052), (1082, 65704), (1528, 46526), (2164, 32852), (3056, 23263), (4328, 16426), (8213, 8656)]