129448040

素因数分解:

$2^3\times 5^1\times {\mathrm{3236201}}^1$

素因数の和:3236212

約数の個数: 16

約数和(自身を含む): 291258180

約数和(自身を除く): 161810140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3236201, 6472402, 12944804, 16181005, 25889608, 32362010, 64724020, 129448040]

約数ペア:

[(1, 129448040), (2, 64724020), (4, 32362010), (5, 25889608), (8, 16181005), (10, 12944804), (20, 6472402), (40, 3236201)]