64231880

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{4549}}^1$

素因数の和:4913

約数の個数: 32

約数和(自身を含む): 144963000

約数和(自身を除く): 80731120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 4549, 7060, 9098, 14120, 18196, 22745, 36392, 45490, 90980, 181960, 1605797, 3211594, 6423188, 8028985, 12846376, 16057970, 32115940, 64231880]

約数ペア:

[(1, 64231880), (2, 32115940), (4, 16057970), (5, 12846376), (8, 8028985), (10, 6423188), (20, 3211594), (40, 1605797), (353, 181960), (706, 90980), (1412, 45490), (1765, 36392), (2824, 22745), (3530, 18196), (4549, 14120), (7060, 9098)]