18270785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 6550207

約数列:

[1, 5, 13, 37, 65, 71, 107, 185, 355, 481, 535, 923, 1391, 2405, 2627, 3959, 4615, 6955, 7597, 13135, 19795, 34151, 37985, 51467, 98761, 170755, 257335, 281089, 493805, 1405445, 3654157, 18270785]

約数ペア:

[(1, 18270785), (5, 3654157), (13, 1405445), (37, 493805), (65, 281089), (71, 257335), (107, 170755), (185, 98761), (355, 51467), (481, 37985), (535, 34151), (923, 19795), (1391, 13135), (2405, 7597), (2627, 6955), (3959, 4615)]