66657740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{77509}}^1$

素因数の和:77561

約数の個数: 24

約数和(自身を含む): 143238480

約数和(自身を除く): 76580740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 77509, 155018, 310036, 387545, 775090, 1550180, 3332887, 6665774, 13331548, 16664435, 33328870, 66657740]

約数ペア:

[(1, 66657740), (2, 33328870), (4, 16664435), (5, 13331548), (10, 6665774), (20, 3332887), (43, 1550180), (86, 775090), (172, 387545), (215, 310036), (430, 155018), (860, 77509)]