20301025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 26883200

約数和(自身を除く): 6582175

約数列:

[1, 5, 19, 25, 79, 95, 395, 475, 541, 1501, 1975, 2705, 7505, 10279, 13525, 37525, 42739, 51395, 213695, 256975, 812041, 1068475, 4060205, 20301025]

約数ペア:

[(1, 20301025), (5, 4060205), (19, 1068475), (25, 812041), (79, 256975), (95, 213695), (395, 51395), (475, 42739), (541, 37525), (1501, 13525), (1975, 10279), (2705, 7505)]