20218860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112327}}^1$

素因数の和:112342

約数の個数: 36

約数和(自身を含む): 61331088

約数和(自身を除く): 41112228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112327, 224654, 336981, 449308, 561635, 673962, 1010943, 1123270, 1347924, 1684905, 2021886, 2246540, 3369810, 4043772, 5054715, 6739620, 10109430, 20218860]

約数ペア:

[(1, 20218860), (2, 10109430), (3, 6739620), (4, 5054715), (5, 4043772), (6, 3369810), (9, 2246540), (10, 2021886), (12, 1684905), (15, 1347924), (18, 1123270), (20, 1010943), (30, 673962), (36, 561635), (45, 449308), (60, 336981), (90, 224654), (180, 112327)]