16978133080

素因数分解:

$2^3\times 5^1\times {\mathrm{3881}}^1\times {\mathrm{109367}}^1$

素因数の和:113259

約数の個数: 32

約数和(自身を含む): 38210991840

約数和(自身を除く): 21232858760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3881, 7762, 15524, 19405, 31048, 38810, 77620, 109367, 155240, 218734, 437468, 546835, 874936, 1093670, 2187340, 4374680, 424453327, 848906654, 1697813308, 2122266635, 3395626616, 4244533270, 8489066540, 16978133080]

約数ペア:

[(1, 16978133080), (2, 8489066540), (4, 4244533270), (5, 3395626616), (8, 2122266635), (10, 1697813308), (20, 848906654), (40, 424453327), (3881, 4374680), (7762, 2187340), (15524, 1093670), (19405, 874936), (31048, 546835), (38810, 437468), (77620, 218734), (109367, 155240)]