1396400

素因数分解:

$2^4\times 5^2\times {\mathrm{3491}}^1$

素因数の和:3509

約数の個数: 30

約数和(自身を含む): 3355812

約数和(自身を除く): 1959412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3491, 6982, 13964, 17455, 27928, 34910, 55856, 69820, 87275, 139640, 174550, 279280, 349100, 698200, 1396400]

約数ペア:

[(1, 1396400), (2, 698200), (4, 349100), (5, 279280), (8, 174550), (10, 139640), (16, 87275), (20, 69820), (25, 55856), (40, 34910), (50, 27928), (80, 17455), (100, 13964), (200, 6982), (400, 3491)]