1285497640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4591063}}^1$

素因数の和:4591081

約数の個数: 32

約数和(自身を含む): 3305566080

約数和(自身を除く): 2020068440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4591063, 9182126, 18364252, 22955315, 32137441, 36728504, 45910630, 64274882, 91821260, 128549764, 160687205, 183642520, 257099528, 321374410, 642748820, 1285497640]

約数ペア:

[(1, 1285497640), (2, 642748820), (4, 321374410), (5, 257099528), (7, 183642520), (8, 160687205), (10, 128549764), (14, 91821260), (20, 64274882), (28, 45910630), (35, 36728504), (40, 32137441), (56, 22955315), (70, 18364252), (140, 9182126), (280, 4591063)]