780345985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 1012061952

約数和(自身を除く): 231715967

約数列:

[1, 5, 17, 67, 85, 263, 335, 521, 1139, 1315, 2605, 4471, 5695, 8857, 17621, 22355, 34907, 44285, 88105, 137023, 174535, 299557, 593419, 685115, 1497785, 2329391, 2967095, 9180541, 11646955, 45902705, 156069197, 780345985]

約数ペア:

[(1, 780345985), (5, 156069197), (17, 45902705), (67, 11646955), (85, 9180541), (263, 2967095), (335, 2329391), (521, 1497785), (1139, 685115), (1315, 593419), (2605, 299557), (4471, 174535), (5695, 137023), (8857, 88105), (17621, 44285), (22355, 34907)]