208857215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2473}}^1$

素因数の和:2631

約数の個数: 32

約数和(自身を含む): 304005120

約数和(自身を除く): 95147905

約数列:

[1, 5, 7, 19, 35, 95, 127, 133, 635, 665, 889, 2413, 2473, 4445, 12065, 12365, 16891, 17311, 46987, 84455, 86555, 234935, 314071, 328909, 1570355, 1644545, 2198497, 5967349, 10992485, 29836745, 41771443, 208857215]

約数ペア:

[(1, 208857215), (5, 41771443), (7, 29836745), (19, 10992485), (35, 5967349), (95, 2198497), (127, 1644545), (133, 1570355), (635, 328909), (665, 314071), (889, 234935), (2413, 86555), (2473, 84455), (4445, 46987), (12065, 17311), (12365, 16891)]