18028985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3511}}^1$

素因数の和:3608

約数の個数: 16

約数和(自身を含む): 23600640

約数和(自身を除く): 5571655

約数列:

[1, 5, 13, 65, 79, 395, 1027, 3511, 5135, 17555, 45643, 228215, 277369, 1386845, 3605797, 18028985]

約数ペア:

[(1, 18028985), (5, 3605797), (13, 1386845), (65, 277369), (79, 228215), (395, 45643), (1027, 17555), (3511, 5135)]