12696400

素因数分解:

$2^4\times 5^2\times {\mathrm{31741}}^1$

素因数の和:31759

約数の個数: 30

約数和(自身を含む): 30504062

約数和(自身を除く): 17807662

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31741, 63482, 126964, 158705, 253928, 317410, 507856, 634820, 793525, 1269640, 1587050, 2539280, 3174100, 6348200, 12696400]

約数ペア:

[(1, 12696400), (2, 6348200), (4, 3174100), (5, 2539280), (8, 1587050), (10, 1269640), (16, 793525), (20, 634820), (25, 507856), (40, 317410), (50, 253928), (80, 158705), (100, 126964), (200, 63482), (400, 31741)]