81461695

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 114301440

約数和(自身を除く): 32839745

約数列:

[1, 5, 7, 35, 109, 131, 163, 545, 655, 763, 815, 917, 1141, 3815, 4585, 5705, 14279, 17767, 21353, 71395, 88835, 99953, 106765, 124369, 149471, 499765, 621845, 747355, 2327477, 11637385, 16292339, 81461695]

約数ペア:

[(1, 81461695), (5, 16292339), (7, 11637385), (35, 2327477), (109, 747355), (131, 621845), (163, 499765), (545, 149471), (655, 124369), (763, 106765), (815, 99953), (917, 88835), (1141, 71395), (3815, 21353), (4585, 17767), (5705, 14279)]