81265325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1789}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 106540800

約数和(自身を除く): 25275475

約数列:

[1, 5, 23, 25, 79, 115, 395, 575, 1789, 1817, 1975, 8945, 9085, 41147, 44725, 45425, 141331, 205735, 706655, 1028675, 3250613, 3533275, 16253065, 81265325]

約数ペア:

[(1, 81265325), (5, 16253065), (23, 3533275), (25, 3250613), (79, 1028675), (115, 706655), (395, 205735), (575, 141331), (1789, 45425), (1817, 44725), (1975, 41147), (8945, 9085)]