2490215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 3706848

約数和(自身を除く): 1216633

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 421, 455, 845, 1183, 2105, 2947, 5473, 5915, 14735, 27365, 38311, 71149, 191555, 355745, 498043, 2490215]

約数ペア:

[(1, 2490215), (5, 498043), (7, 355745), (13, 191555), (35, 71149), (65, 38311), (91, 27365), (169, 14735), (421, 5915), (455, 5473), (845, 2947), (1183, 2105)]