131243255

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 196269696

約数和(自身を除く): 65026441

約数列:

[1, 5, 11, 13, 37, 41, 55, 65, 121, 143, 185, 205, 407, 451, 481, 533, 605, 715, 1331, 1517, 1573, 2035, 2255, 2405, 2665, 4477, 4961, 5291, 5863, 6655, 7585, 7865, 16687, 17303, 19721, 22385, 24805, 26455, 29315, 49247, 54571, 58201, 64493, 83435, 86515, 98605, 183557, 216931, 246235, 272855, 291005, 322465, 640211, 709423, 917785, 1084655, 2019127, 2386241, 3201055, 3547115, 10095635, 11931205, 26248651, 131243255]

約数ペア:

[(1, 131243255), (5, 26248651), (11, 11931205), (13, 10095635), (37, 3547115), (41, 3201055), (55, 2386241), (65, 2019127), (121, 1084655), (143, 917785), (185, 709423), (205, 640211), (407, 322465), (451, 291005), (481, 272855), (533, 246235), (605, 216931), (715, 183557), (1331, 98605), (1517, 86515), (1573, 83435), (2035, 64493), (2255, 58201), (2405, 54571), (2665, 49247), (4477, 29315), (4961, 26455), (5291, 24805), (5863, 22385), (6655, 19721), (7585, 17303), (7865, 16687)]