20565315

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 38188800

約数和(自身を除く): 17623485

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 67, 95, 171, 201, 285, 335, 359, 603, 855, 1005, 1077, 1273, 1795, 3015, 3231, 3819, 5385, 6365, 6821, 11457, 16155, 19095, 20463, 24053, 34105, 57285, 61389, 72159, 102315, 120265, 216477, 306945, 360795, 457007, 1082385, 1371021, 2285035, 4113063, 6855105, 20565315]

約数ペア:

[(1, 20565315), (3, 6855105), (5, 4113063), (9, 2285035), (15, 1371021), (19, 1082385), (45, 457007), (57, 360795), (67, 306945), (95, 216477), (171, 120265), (201, 102315), (285, 72159), (335, 61389), (359, 57285), (603, 34105), (855, 24053), (1005, 20463), (1077, 19095), (1273, 16155), (1795, 11457), (3015, 6821), (3231, 6365), (3819, 5385)]