1811485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:109

約数の個数: 24

約数和(自身を含む): 2502360

約数和(自身を除く): 690875

約数列:

[1, 5, 13, 29, 31, 65, 145, 155, 377, 403, 899, 961, 1885, 2015, 4495, 4805, 11687, 12493, 27869, 58435, 62465, 139345, 362297, 1811485]

約数ペア:

[(1, 1811485), (5, 362297), (13, 139345), (29, 62465), (31, 58435), (65, 27869), (145, 12493), (155, 11687), (377, 4805), (403, 4495), (899, 2015), (961, 1885)]