20123961040

素因数分解:

$2^4\times 5^1\times {\mathrm{251549513}}^1$

素因数の和:251549526

約数の個数: 20

約数和(自身を含む): 46788209604

約数和(自身を除く): 26664248564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251549513, 503099026, 1006198052, 1257747565, 2012396104, 2515495130, 4024792208, 5030990260, 10061980520, 20123961040]

約数ペア:

[(1, 20123961040), (2, 10061980520), (4, 5030990260), (5, 4024792208), (8, 2515495130), (10, 2012396104), (16, 1257747565), (20, 1006198052), (40, 503099026), (80, 251549513)]