870868280

素因数分解:

$2^3\times 5^1\times {\mathrm{21771707}}^1$

素因数の和:21771718

約数の個数: 16

約数和(自身を含む): 1959453720

約数和(自身を除く): 1088585440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21771707, 43543414, 87086828, 108858535, 174173656, 217717070, 435434140, 870868280]

約数ペア:

[(1, 870868280), (2, 435434140), (4, 217717070), (5, 174173656), (8, 108858535), (10, 87086828), (20, 43543414), (40, 21771707)]