399211360

素因数分解:

$2^5\times 5^1\times {\mathrm{2495071}}^1$

素因数の和:2495086

約数の個数: 24

約数和(自身を含む): 943137216

約数和(自身を除く): 543925856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2495071, 4990142, 9980284, 12475355, 19960568, 24950710, 39921136, 49901420, 79842272, 99802840, 199605680, 399211360]

約数ペア:

[(1, 399211360), (2, 199605680), (4, 99802840), (5, 79842272), (8, 49901420), (10, 39921136), (16, 24950710), (20, 19960568), (32, 12475355), (40, 9980284), (80, 4990142), (160, 2495071)]