20403590

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7529}}^1$

素因数の和:7807

約数の個数: 16

約数和(自身を含む): 36866880

約数和(自身を除く): 16463290

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7529, 15058, 37645, 75290, 2040359, 4080718, 10201795, 20403590]

約数ペア:

[(1, 20403590), (2, 10201795), (5, 4080718), (10, 2040359), (271, 75290), (542, 37645), (1355, 15058), (2710, 7529)]