131731288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{23899}}^1$

素因数の和:23971

約数の個数: 32

約数和(自身を含む): 271026000

約数和(自身を除く): 139294712

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 5512, 23899, 47798, 95596, 191192, 310687, 621374, 1242748, 1266647, 2485496, 2533294, 5066588, 10133176, 16466411, 32932822, 65865644, 131731288]

約数ペア:

[(1, 131731288), (2, 65865644), (4, 32932822), (8, 16466411), (13, 10133176), (26, 5066588), (52, 2533294), (53, 2485496), (104, 1266647), (106, 1242748), (212, 621374), (424, 310687), (689, 191192), (1378, 95596), (2756, 47798), (5512, 23899)]