20121856280

素因数分解:

$2^3\times 5^1\times {\mathrm{503046407}}^1$

素因数の和:503046418

約数の個数: 16

約数和(自身を含む): 45274176720

約数和(自身を除く): 25152320440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503046407, 1006092814, 2012185628, 2515232035, 4024371256, 5030464070, 10060928140, 20121856280]

約数ペア:

[(1, 20121856280), (2, 10060928140), (4, 5030464070), (5, 4024371256), (8, 2515232035), (10, 2012185628), (20, 1006092814), (40, 503046407)]