18197680

素因数分解:

$2^4\times 5^1\times {\mathrm{227471}}^1$

素因数の和:227484

約数の個数: 20

約数和(自身を含む): 42309792

約数和(自身を除く): 24112112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227471, 454942, 909884, 1137355, 1819768, 2274710, 3639536, 4549420, 9098840, 18197680]

約数ペア:

[(1, 18197680), (2, 9098840), (4, 4549420), (5, 3639536), (8, 2274710), (10, 1819768), (16, 1137355), (20, 909884), (40, 454942), (80, 227471)]