17820740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127291}}^1$

素因数の和:127307

約数の個数: 24

約数和(自身を含む): 42770112

約数和(自身を除く): 24949372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 127291, 254582, 509164, 636455, 891037, 1272910, 1782074, 2545820, 3564148, 4455185, 8910370, 17820740]

約数ペア:

[(1, 17820740), (2, 8910370), (4, 4455185), (5, 3564148), (7, 2545820), (10, 1782074), (14, 1272910), (20, 891037), (28, 636455), (35, 509164), (70, 254582), (140, 127291)]