1220845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:276

約数の個数: 16

約数和(自身を含む): 1572480

約数和(自身を除く): 351635

約数列:

[1, 5, 19, 71, 95, 181, 355, 905, 1349, 3439, 6745, 12851, 17195, 64255, 244169, 1220845]

約数ペア:

[(1, 1220845), (5, 244169), (19, 64255), (71, 17195), (95, 12851), (181, 6745), (355, 3439), (905, 1349)]