20109475

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 26685792

約数和(自身を除く): 6576317

約数列:

[1, 5, 23, 25, 41, 115, 205, 575, 853, 943, 1025, 4265, 4715, 19619, 21325, 23575, 34973, 98095, 174865, 490475, 804379, 874325, 4021895, 20109475]

約数ペア:

[(1, 20109475), (5, 4021895), (23, 874325), (25, 804379), (41, 490475), (115, 174865), (205, 98095), (575, 34973), (853, 23575), (943, 21325), (1025, 19619), (4265, 4715)]