79661200

素因数分解:

$2^4\times 5^2\times {\mathrm{199153}}^1$

素因数の和:199171

約数の個数: 30

約数和(自身を含む): 191386994

約数和(自身を除く): 111725794

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199153, 398306, 796612, 995765, 1593224, 1991530, 3186448, 3983060, 4978825, 7966120, 9957650, 15932240, 19915300, 39830600, 79661200]

約数ペア:

[(1, 79661200), (2, 39830600), (4, 19915300), (5, 15932240), (8, 9957650), (10, 7966120), (16, 4978825), (20, 3983060), (25, 3186448), (40, 1991530), (50, 1593224), (80, 995765), (100, 796612), (200, 398306), (400, 199153)]