681712

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:456

約数の個数: 20

約数和(自身を含む): 1334736

約数和(自身を除く): 653024

約数列:

[1, 2, 4, 8, 16, 137, 274, 311, 548, 622, 1096, 1244, 2192, 2488, 4976, 42607, 85214, 170428, 340856, 681712]

約数ペア:

[(1, 681712), (2, 340856), (4, 170428), (8, 85214), (16, 42607), (137, 4976), (274, 2488), (311, 2192), (548, 1244), (622, 1096)]