1428400

素因数分解:

$2^4\times 5^2\times {\mathrm{3571}}^1$

素因数の和:3589

約数の個数: 30

約数和(自身を含む): 3432692

約数和(自身を除く): 2004292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3571, 7142, 14284, 17855, 28568, 35710, 57136, 71420, 89275, 142840, 178550, 285680, 357100, 714200, 1428400]

約数ペア:

[(1, 1428400), (2, 714200), (4, 357100), (5, 285680), (8, 178550), (10, 142840), (16, 89275), (20, 71420), (25, 57136), (40, 35710), (50, 28568), (80, 17855), (100, 14284), (200, 7142), (400, 3571)]