1393405

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 1936872

約数和(自身を除く): 543467

約数列:

[1, 5, 13, 17, 65, 85, 97, 169, 221, 485, 845, 1105, 1261, 1649, 2873, 6305, 8245, 14365, 16393, 21437, 81965, 107185, 278681, 1393405]

約数ペア:

[(1, 1393405), (5, 278681), (13, 107185), (17, 81965), (65, 21437), (85, 16393), (97, 14365), (169, 8245), (221, 6305), (485, 2873), (845, 1649), (1105, 1261)]