90809985

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{123551}}^1$

素因数の和:123573

約数の個数: 24

約数和(自身を含む): 169019136

約数和(自身を除く): 78209151

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 123551, 370653, 617755, 864857, 1853265, 2594571, 4324285, 6053999, 12972855, 18161997, 30269995, 90809985]

約数ペア:

[(1, 90809985), (3, 30269995), (5, 18161997), (7, 12972855), (15, 6053999), (21, 4324285), (35, 2594571), (49, 1853265), (105, 864857), (147, 617755), (245, 370653), (735, 123551)]