20383820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10091}}^1$

素因数の和:10201

約数の個数: 24

約数和(自身を含む): 43234128

約数和(自身を除く): 22850308

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10091, 20182, 40364, 50455, 100910, 201820, 1019191, 2038382, 4076764, 5095955, 10191910, 20383820]

約数ペア:

[(1, 20383820), (2, 10191910), (4, 5095955), (5, 4076764), (10, 2038382), (20, 1019191), (101, 201820), (202, 100910), (404, 50455), (505, 40364), (1010, 20182), (2020, 10091)]