17945143775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{3301}}^1$

素因数の和:3756

約数の個数: 48

約数和(自身を含む): 24591446880

約数和(自身を除く): 6646303105

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 389, 559, 1075, 1945, 2795, 3301, 5057, 9725, 13975, 16505, 16727, 25285, 42913, 82525, 83635, 126425, 141943, 214565, 217451, 418175, 709715, 1072825, 1087255, 1284089, 1845259, 3548575, 5436275, 6420445, 9226295, 16693157, 32102225, 46131475, 55215827, 83465785, 276079135, 417328925, 717805751, 1380395675, 3589028755, 17945143775]

約数ペア:

[(1, 17945143775), (5, 3589028755), (13, 1380395675), (25, 717805751), (43, 417328925), (65, 276079135), (215, 83465785), (325, 55215827), (389, 46131475), (559, 32102225), (1075, 16693157), (1945, 9226295), (2795, 6420445), (3301, 5436275), (5057, 3548575), (9725, 1845259), (13975, 1284089), (16505, 1087255), (16727, 1072825), (25285, 709715), (42913, 418175), (82525, 217451), (83635, 214565), (126425, 141943)]