780215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 16

約数和(自身を含む): 1013472

約数和(自身を除く): 233257

約数列:

[1, 5, 17, 67, 85, 137, 335, 685, 1139, 2329, 5695, 9179, 11645, 45895, 156043, 780215]

約数ペア:

[(1, 780215), (5, 156043), (17, 45895), (67, 11645), (85, 9179), (137, 5695), (335, 2329), (685, 1139)]