90206180

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{4243}}^1$

素因数の和:5315

約数の個数: 24

約数和(自身を含む): 189655872

約数和(自身を除く): 99449692

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4243, 4252, 5315, 8486, 10630, 16972, 21215, 21260, 42430, 84860, 4510309, 9020618, 18041236, 22551545, 45103090, 90206180]

約数ペア:

[(1, 90206180), (2, 45103090), (4, 22551545), (5, 18041236), (10, 9020618), (20, 4510309), (1063, 84860), (2126, 42430), (4243, 21260), (4252, 21215), (5315, 16972), (8486, 10630)]