20609890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42061}}^1$

素因数の和:42082

約数の個数: 24

約数和(自身を含む): 43155612

約数和(自身を除く): 22545722

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42061, 84122, 210305, 294427, 420610, 588854, 1472135, 2060989, 2944270, 4121978, 10304945, 20609890]

約数ペア:

[(1, 20609890), (2, 10304945), (5, 4121978), (7, 2944270), (10, 2060989), (14, 1472135), (35, 588854), (49, 420610), (70, 294427), (98, 210305), (245, 84122), (490, 42061)]