72289640

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{2549}}^1$

素因数の和:3269

約数の個数: 32

約数和(自身を含む): 162945000

約数和(自身を除く): 90655360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2549, 2836, 3545, 5098, 5672, 7090, 10196, 12745, 14180, 20392, 25490, 28360, 50980, 101960, 1807241, 3614482, 7228964, 9036205, 14457928, 18072410, 36144820, 72289640]

約数ペア:

[(1, 72289640), (2, 36144820), (4, 18072410), (5, 14457928), (8, 9036205), (10, 7228964), (20, 3614482), (40, 1807241), (709, 101960), (1418, 50980), (2549, 28360), (2836, 25490), (3545, 20392), (5098, 14180), (5672, 12745), (7090, 10196)]