157942785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 346558464

約数和(自身を除く): 188615679

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 67, 77, 91, 105, 143, 157, 165, 195, 201, 231, 273, 335, 385, 429, 455, 469, 471, 715, 737, 785, 871, 1001, 1005, 1099, 1155, 1365, 1407, 1727, 2041, 2145, 2211, 2345, 2355, 2613, 3003, 3297, 3685, 4355, 5005, 5159, 5181, 5495, 6097, 6123, 7035, 8635, 9581, 10205, 10519, 11055, 12089, 13065, 14287, 15015, 15477, 16485, 18291, 22451, 25795, 25905, 28743, 30485, 30615, 31557, 36267, 42861, 47905, 52595, 60445, 67067, 67353, 71435, 73633, 77385, 91455, 112255, 115709, 136747, 143715, 157157, 157785, 181335, 201201, 214305, 220899, 335335, 336765, 347127, 368165, 410241, 471471, 578545, 683735, 785785, 809963, 957229, 1006005, 1104495, 1504217, 1735635, 2051205, 2357355, 2429889, 2871687, 4049815, 4512651, 4786145, 7521085, 10529519, 12149445, 14358435, 22563255, 31588557, 52647595, 157942785]

約数ペア:

[(1, 157942785), (3, 52647595), (5, 31588557), (7, 22563255), (11, 14358435), (13, 12149445), (15, 10529519), (21, 7521085), (33, 4786145), (35, 4512651), (39, 4049815), (55, 2871687), (65, 2429889), (67, 2357355), (77, 2051205), (91, 1735635), (105, 1504217), (143, 1104495), (157, 1006005), (165, 957229), (195, 809963), (201, 785785), (231, 683735), (273, 578545), (335, 471471), (385, 410241), (429, 368165), (455, 347127), (469, 336765), (471, 335335), (715, 220899), (737, 214305), (785, 201201), (871, 181335), (1001, 157785), (1005, 157157), (1099, 143715), (1155, 136747), (1365, 115709), (1407, 112255), (1727, 91455), (2041, 77385), (2145, 73633), (2211, 71435), (2345, 67353), (2355, 67067), (2613, 60445), (3003, 52595), (3297, 47905), (3685, 42861), (4355, 36267), (5005, 31557), (5159, 30615), (5181, 30485), (5495, 28743), (6097, 25905), (6123, 25795), (7035, 22451), (8635, 18291), (9581, 16485), (10205, 15477), (10519, 15015), (11055, 14287), (12089, 13065)]