18159890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{37061}}^1$

素因数の和:37082

約数の個数: 24

約数和(自身を含む): 38025612

約数和(自身を除く): 19865722

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 37061, 74122, 185305, 259427, 370610, 518854, 1297135, 1815989, 2594270, 3631978, 9079945, 18159890]

約数ペア:

[(1, 18159890), (2, 9079945), (5, 3631978), (7, 2594270), (10, 1815989), (14, 1297135), (35, 518854), (49, 370610), (70, 259427), (98, 185305), (245, 74122), (490, 37061)]