81841825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{14813}}^1$

素因数の和:14853

約数の個数: 24

約数和(自身を含む): 115726968

約数和(自身を除く): 33885143

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 14813, 74065, 192569, 251821, 370325, 962845, 1259105, 3273673, 4814225, 6295525, 16368365, 81841825]

約数ペア:

[(1, 81841825), (5, 16368365), (13, 6295525), (17, 4814225), (25, 3273673), (65, 1259105), (85, 962845), (221, 370325), (325, 251821), (425, 192569), (1105, 74065), (5525, 14813)]