155620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 338688

約数和(自身を除く): 183068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 251, 310, 502, 620, 1004, 1255, 2510, 5020, 7781, 15562, 31124, 38905, 77810, 155620]

約数ペア:

[(1, 155620), (2, 77810), (4, 38905), (5, 31124), (10, 15562), (20, 7781), (31, 5020), (62, 2510), (124, 1255), (155, 1004), (251, 620), (310, 502)]