872420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 1849848

約数和(自身を除く): 977428

約数列:

[1, 2, 4, 5, 10, 20, 181, 241, 362, 482, 724, 905, 964, 1205, 1810, 2410, 3620, 4820, 43621, 87242, 174484, 218105, 436210, 872420]

約数ペア:

[(1, 872420), (2, 436210), (4, 218105), (5, 174484), (10, 87242), (20, 43621), (181, 4820), (241, 3620), (362, 2410), (482, 1810), (724, 1205), (905, 964)]