4394800

素因数分解:

$2^4\times 5^2\times {\mathrm{10987}}^1$

素因数の和:11005

約数の個数: 30

約数和(自身を含む): 10559468

約数和(自身を除く): 6164668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 10987, 21974, 43948, 54935, 87896, 109870, 175792, 219740, 274675, 439480, 549350, 878960, 1098700, 2197400, 4394800]

約数ペア:

[(1, 4394800), (2, 2197400), (4, 1098700), (5, 878960), (8, 549350), (10, 439480), (16, 274675), (20, 219740), (25, 175792), (40, 109870), (50, 87896), (80, 54935), (100, 43948), (200, 21974), (400, 10987)]