128421265

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{757}}^1$

素因数の和:937

約数の個数: 32

約数和(自身を含む): 182502144

約数和(自身を除く): 54080879

約数列:

[1, 5, 7, 35, 37, 131, 185, 259, 655, 757, 917, 1295, 3785, 4585, 4847, 5299, 24235, 26495, 28009, 33929, 99167, 140045, 169645, 196063, 495835, 694169, 980315, 3470845, 3669179, 18345895, 25684253, 128421265]

約数ペア:

[(1, 128421265), (5, 25684253), (7, 18345895), (35, 3669179), (37, 3470845), (131, 980315), (185, 694169), (259, 495835), (655, 196063), (757, 169645), (917, 140045), (1295, 99167), (3785, 33929), (4585, 28009), (4847, 26495), (5299, 24235)]