1271163640

素因数分解:

$2^3\times 5^1\times {\mathrm{31779091}}^1$

素因数の和:31779102

約数の個数: 16

約数和(自身を含む): 2860118280

約数和(自身を除く): 1588954640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31779091, 63558182, 127116364, 158895455, 254232728, 317790910, 635581820, 1271163640]

約数ペア:

[(1, 1271163640), (2, 635581820), (4, 317790910), (5, 254232728), (8, 158895455), (10, 127116364), (20, 63558182), (40, 31779091)]