128857424

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{196429}}^1$

素因数の和:196478

約数の個数: 20

約数和(自身を含む): 255751860

約数和(自身を除く): 126894436

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 196429, 392858, 785716, 1571432, 3142864, 8053589, 16107178, 32214356, 64428712, 128857424]

約数ペア:

[(1, 128857424), (2, 64428712), (4, 32214356), (8, 16107178), (16, 8053589), (41, 3142864), (82, 1571432), (164, 785716), (328, 392858), (656, 196429)]