1420445

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:113

約数の個数: 18

約数和(自身を含む): 1891854

約数和(自身を除く): 471409

約数列:

[1, 5, 13, 41, 65, 169, 205, 533, 845, 1681, 2665, 6929, 8405, 21853, 34645, 109265, 284089, 1420445]

約数ペア:

[(1, 1420445), (5, 284089), (13, 109265), (41, 34645), (65, 21853), (169, 8405), (205, 6929), (533, 2665), (845, 1681)]