20858220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115879}}^1$

素因数の和:115894

約数の個数: 36

約数和(自身を含む): 63270480

約数和(自身を除く): 42412260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115879, 231758, 347637, 463516, 579395, 695274, 1042911, 1158790, 1390548, 1738185, 2085822, 2317580, 3476370, 4171644, 5214555, 6952740, 10429110, 20858220]

約数ペア:

[(1, 20858220), (2, 10429110), (3, 6952740), (4, 5214555), (5, 4171644), (6, 3476370), (9, 2317580), (10, 2085822), (12, 1738185), (15, 1390548), (18, 1158790), (20, 1042911), (30, 695274), (36, 579395), (45, 463516), (60, 347637), (90, 231758), (180, 115879)]