81259738

素因数分解:

$2^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{5087}}^1$

素因数の和:5266

約数の個数: 24

約数和(自身を含む): 142687872

約数和(自身を除く): 61428134

約数列:

[1, 2, 7, 14, 49, 98, 163, 326, 1141, 2282, 5087, 7987, 10174, 15974, 35609, 71218, 249263, 498526, 829181, 1658362, 5804267, 11608534, 40629869, 81259738]

約数ペア:

[(1, 81259738), (2, 40629869), (7, 11608534), (14, 5804267), (49, 1658362), (98, 829181), (163, 498526), (326, 249263), (1141, 71218), (2282, 35609), (5087, 15974), (7987, 10174)]