81028825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{953}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 106466400

約数和(自身を除く): 25437575

約数列:

[1, 5, 19, 25, 95, 179, 475, 895, 953, 3401, 4475, 4765, 17005, 18107, 23825, 85025, 90535, 170587, 452675, 852935, 3241153, 4264675, 16205765, 81028825]

約数ペア:

[(1, 81028825), (5, 16205765), (19, 4264675), (25, 3241153), (95, 852935), (179, 452675), (475, 170587), (895, 90535), (953, 85025), (3401, 23825), (4475, 18107), (4765, 17005)]