18327205

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 36

約数和(自身を含む): 25502148

約数和(自身を除く): 7174943

約数列:

[1, 5, 13, 23, 41, 65, 115, 169, 205, 299, 529, 533, 845, 943, 1495, 2645, 2665, 3887, 4715, 6877, 6929, 12259, 19435, 21689, 34385, 34645, 61295, 89401, 108445, 159367, 281957, 447005, 796835, 1409785, 3665441, 18327205]

約数ペア:

[(1, 18327205), (5, 3665441), (13, 1409785), (23, 796835), (41, 447005), (65, 281957), (115, 159367), (169, 108445), (205, 89401), (299, 61295), (529, 34645), (533, 34385), (845, 21689), (943, 19435), (1495, 12259), (2645, 6929), (2665, 6877), (3887, 4715)]