156637420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{252641}}^1$

素因数の和:252681

約数の個数: 24

約数和(自身を含む): 339550848

約数和(自身を除く): 182913428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 252641, 505282, 1010564, 1263205, 2526410, 5052820, 7831871, 15663742, 31327484, 39159355, 78318710, 156637420]

約数ペア:

[(1, 156637420), (2, 78318710), (4, 39159355), (5, 31327484), (10, 15663742), (20, 7831871), (31, 5052820), (62, 2526410), (124, 1263205), (155, 1010564), (310, 505282), (620, 252641)]