51430015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 82494720

約数和(自身を除く): 31064705

約数列:

[1, 5, 7, 13, 17, 35, 61, 65, 85, 91, 109, 119, 221, 305, 427, 455, 545, 595, 763, 793, 1037, 1105, 1417, 1547, 1853, 2135, 3815, 3965, 5185, 5551, 6649, 7085, 7259, 7735, 9265, 9919, 12971, 13481, 24089, 27755, 33245, 36295, 46543, 49595, 64855, 67405, 86437, 94367, 113033, 120445, 168623, 232715, 432185, 471835, 565165, 605059, 791231, 843115, 1469429, 3025295, 3956155, 7347145, 10286003, 51430015]

約数ペア:

[(1, 51430015), (5, 10286003), (7, 7347145), (13, 3956155), (17, 3025295), (35, 1469429), (61, 843115), (65, 791231), (85, 605059), (91, 565165), (109, 471835), (119, 432185), (221, 232715), (305, 168623), (427, 120445), (455, 113033), (545, 94367), (595, 86437), (763, 67405), (793, 64855), (1037, 49595), (1105, 46543), (1417, 36295), (1547, 33245), (1853, 27755), (2135, 24089), (3815, 13481), (3965, 12971), (5185, 9919), (5551, 9265), (6649, 7735), (7085, 7259)]