18549220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22621}}^1$

素因数の和:22671

約数の個数: 24

約数和(自身を含む): 39905208

約数和(自身を除く): 21355988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22621, 45242, 90484, 113105, 226210, 452420, 927461, 1854922, 3709844, 4637305, 9274610, 18549220]

約数ペア:

[(1, 18549220), (2, 9274610), (4, 4637305), (5, 3709844), (10, 1854922), (20, 927461), (41, 452420), (82, 226210), (164, 113105), (205, 90484), (410, 45242), (820, 22621)]