79871600

素因数分解:

$2^4\times 5^2\times {\mathrm{199679}}^1$

素因数の和:199697

約数の個数: 30

約数和(自身を含む): 191892480

約数和(自身を除く): 112020880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199679, 399358, 798716, 998395, 1597432, 1996790, 3194864, 3993580, 4991975, 7987160, 9983950, 15974320, 19967900, 39935800, 79871600]

約数ペア:

[(1, 79871600), (2, 39935800), (4, 19967900), (5, 15974320), (8, 9983950), (10, 7987160), (16, 4991975), (20, 3993580), (25, 3194864), (40, 1996790), (50, 1597432), (80, 998395), (100, 798716), (200, 399358), (400, 199679)]