18962420

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1931}}^1$

素因数の和:2431

約数の個数: 24

約数和(自身を含む): 39922848

約数和(自身を除く): 20960428

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1931, 1964, 2455, 3862, 4910, 7724, 9655, 9820, 19310, 38620, 948121, 1896242, 3792484, 4740605, 9481210, 18962420]

約数ペア:

[(1, 18962420), (2, 9481210), (4, 4740605), (5, 3792484), (10, 1896242), (20, 948121), (491, 38620), (982, 19310), (1931, 9820), (1964, 9655), (2455, 7724), (3862, 4910)]