221523340

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{5683}}^1$

素因数の和:7641

約数の個数: 24

約数和(自身を含む): 465519600

約数和(自身を除く): 243996260

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 5683, 7796, 9745, 11366, 19490, 22732, 28415, 38980, 56830, 113660, 11076167, 22152334, 44304668, 55380835, 110761670, 221523340]

約数ペア:

[(1, 221523340), (2, 110761670), (4, 55380835), (5, 44304668), (10, 22152334), (20, 11076167), (1949, 113660), (3898, 56830), (5683, 38980), (7796, 28415), (9745, 22732), (11366, 19490)]