18019235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{709}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 25764480

約数和(自身を除く): 7745245

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 709, 1105, 1495, 1955, 3545, 5083, 9217, 12053, 16307, 25415, 46085, 60265, 81535, 156689, 211991, 277219, 783445, 1059955, 1386095, 3603847, 18019235]

約数ペア:

[(1, 18019235), (5, 3603847), (13, 1386095), (17, 1059955), (23, 783445), (65, 277219), (85, 211991), (115, 156689), (221, 81535), (299, 60265), (391, 46085), (709, 25415), (1105, 16307), (1495, 12053), (1955, 9217), (3545, 5083)]