68815940

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{19889}}^1$

素因数の和:20071

約数の個数: 24

約数和(自身を含む): 145356120

約数和(自身を除く): 76540180

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 19889, 39778, 79556, 99445, 198890, 397780, 3440797, 6881594, 13763188, 17203985, 34407970, 68815940]

約数ペア:

[(1, 68815940), (2, 34407970), (4, 17203985), (5, 13763188), (10, 6881594), (20, 3440797), (173, 397780), (346, 198890), (692, 99445), (865, 79556), (1730, 39778), (3460, 19889)]