25780005

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4441}}^1$

素因数の和:4498

約数の個数: 32

約数和(自身を含む): 46907520

約数和(自身を除く): 21127515

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 4441, 5805, 13323, 22205, 39969, 66615, 119907, 190963, 199845, 572889, 599535, 954815, 1718667, 2864445, 5156001, 8593335, 25780005]

約数ペア:

[(1, 25780005), (3, 8593335), (5, 5156001), (9, 2864445), (15, 1718667), (27, 954815), (43, 599535), (45, 572889), (129, 199845), (135, 190963), (215, 119907), (387, 66615), (645, 39969), (1161, 22205), (1935, 13323), (4441, 5805)]