20599220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25121}}^1$

素因数の和:25171

約数の個数: 24

約数和(自身を含む): 44315208

約数和(自身を除く): 23715988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25121, 50242, 100484, 125605, 251210, 502420, 1029961, 2059922, 4119844, 5149805, 10299610, 20599220]

約数ペア:

[(1, 20599220), (2, 10299610), (4, 5149805), (5, 4119844), (10, 2059922), (20, 1029961), (41, 502420), (82, 251210), (164, 125605), (205, 100484), (410, 50242), (820, 25121)]