28359495

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 53071200

約数和(自身を除く): 24711705

約数列:

[1, 3, 5, 9, 15, 19, 41, 45, 57, 95, 123, 171, 205, 285, 369, 615, 779, 809, 855, 1845, 2337, 2427, 3895, 4045, 7011, 7281, 11685, 12135, 15371, 33169, 35055, 36405, 46113, 76855, 99507, 138339, 165845, 230565, 298521, 497535, 630211, 691695, 1492605, 1890633, 3151055, 5671899, 9453165, 28359495]

約数ペア:

[(1, 28359495), (3, 9453165), (5, 5671899), (9, 3151055), (15, 1890633), (19, 1492605), (41, 691695), (45, 630211), (57, 497535), (95, 298521), (123, 230565), (171, 165845), (205, 138339), (285, 99507), (369, 76855), (615, 46113), (779, 36405), (809, 35055), (855, 33169), (1845, 15371), (2337, 12135), (2427, 11685), (3895, 7281), (4045, 7011)]