19450420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88411}}^1$

素因数の和:88431

約数の個数: 24

約数和(自身を含む): 44559648

約数和(自身を除く): 25109228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88411, 176822, 353644, 442055, 884110, 972521, 1768220, 1945042, 3890084, 4862605, 9725210, 19450420]

約数ペア:

[(1, 19450420), (2, 9725210), (4, 4862605), (5, 3890084), (10, 1945042), (11, 1768220), (20, 972521), (22, 884110), (44, 442055), (55, 353644), (110, 176822), (220, 88411)]