2213975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 2976000

約数和(自身を除く): 762025

約数列:

[1, 5, 19, 25, 59, 79, 95, 295, 395, 475, 1121, 1475, 1501, 1975, 4661, 5605, 7505, 23305, 28025, 37525, 88559, 116525, 442795, 2213975]

約数ペア:

[(1, 2213975), (5, 442795), (19, 116525), (25, 88559), (59, 37525), (79, 28025), (95, 23305), (295, 7505), (395, 5605), (475, 4661), (1121, 1975), (1475, 1501)]