81838020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123997}}^1$

素因数の和:124020

約数の個数: 48

約数和(自身を含む): 249979968

約数和(自身を除く): 168141948

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 123997, 247994, 371991, 495988, 619985, 743982, 1239970, 1363967, 1487964, 1859955, 2479940, 2727934, 3719910, 4091901, 5455868, 6819835, 7439820, 8183802, 13639670, 16367604, 20459505, 27279340, 40919010, 81838020]

約数ペア:

[(1, 81838020), (2, 40919010), (3, 27279340), (4, 20459505), (5, 16367604), (6, 13639670), (10, 8183802), (11, 7439820), (12, 6819835), (15, 5455868), (20, 4091901), (22, 3719910), (30, 2727934), (33, 2479940), (44, 1859955), (55, 1487964), (60, 1363967), (66, 1239970), (110, 743982), (132, 619985), (165, 495988), (220, 371991), (330, 247994), (660, 123997)]