128353960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458407}}^1$

素因数の和:458425

約数の個数: 32

約数和(自身を含む): 330053760

約数和(自身を除く): 201699800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458407, 916814, 1833628, 2292035, 3208849, 3667256, 4584070, 6417698, 9168140, 12835396, 16044245, 18336280, 25670792, 32088490, 64176980, 128353960]

約数ペア:

[(1, 128353960), (2, 64176980), (4, 32088490), (5, 25670792), (7, 18336280), (8, 16044245), (10, 12835396), (14, 9168140), (20, 6417698), (28, 4584070), (35, 3667256), (40, 3208849), (56, 2292035), (70, 1833628), (140, 916814), (280, 458407)]