99100025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1801}}^1$

素因数の和:1913

約数の個数: 24

約数和(自身を含む): 128706048

約数和(自身を除く): 29606023

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1775, 1801, 2201, 9005, 11005, 45025, 55025, 55831, 127871, 279155, 639355, 1395775, 3196775, 3964001, 19820005, 99100025]

約数ペア:

[(1, 99100025), (5, 19820005), (25, 3964001), (31, 3196775), (71, 1395775), (155, 639355), (355, 279155), (775, 127871), (1775, 55831), (1801, 55025), (2201, 45025), (9005, 11005)]