140890420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{640411}}^1$

素因数の和:640431

約数の個数: 24

約数和(自身を含む): 322767648

約数和(自身を除く): 181877228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 640411, 1280822, 2561644, 3202055, 6404110, 7044521, 12808220, 14089042, 28178084, 35222605, 70445210, 140890420]

約数ペア:

[(1, 140890420), (2, 70445210), (4, 35222605), (5, 28178084), (10, 14089042), (11, 12808220), (20, 7044521), (22, 6404110), (44, 3202055), (55, 2561644), (110, 1280822), (220, 640411)]