1987335

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{701}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 4077216

約数和(自身を除く): 2089881

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 701, 945, 2103, 2835, 3505, 4907, 6309, 10515, 14721, 18927, 24535, 31545, 44163, 56781, 73605, 94635, 132489, 220815, 283905, 397467, 662445, 1987335]

約数ペア:

[(1, 1987335), (3, 662445), (5, 397467), (7, 283905), (9, 220815), (15, 132489), (21, 94635), (27, 73605), (35, 56781), (45, 44163), (63, 31545), (81, 24535), (105, 18927), (135, 14721), (189, 10515), (315, 6309), (405, 4907), (567, 3505), (701, 2835), (945, 2103)]