642806460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{123143}}^1$

素因数の和:123187

約数の個数: 72

約数和(自身を含む): 2017098720

約数和(自身を除く): 1374292260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 123143, 246286, 369429, 492572, 615715, 738858, 1108287, 1231430, 1477716, 1847145, 2216574, 2462860, 3571147, 3694290, 4433148, 5541435, 7142294, 7388580, 10713441, 11082870, 14284588, 17855735, 21426882, 22165740, 32140323, 35711470, 42853764, 53567205, 64280646, 71422940, 107134410, 128561292, 160701615, 214268820, 321403230, 642806460]

約数ペア:

[(1, 642806460), (2, 321403230), (3, 214268820), (4, 160701615), (5, 128561292), (6, 107134410), (9, 71422940), (10, 64280646), (12, 53567205), (15, 42853764), (18, 35711470), (20, 32140323), (29, 22165740), (30, 21426882), (36, 17855735), (45, 14284588), (58, 11082870), (60, 10713441), (87, 7388580), (90, 7142294), (116, 5541435), (145, 4433148), (174, 3694290), (180, 3571147), (261, 2462860), (290, 2216574), (348, 1847145), (435, 1477716), (522, 1231430), (580, 1108287), (870, 738858), (1044, 615715), (1305, 492572), (1740, 369429), (2610, 246286), (5220, 123143)]