656127121

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 796884480

約数和(自身を除く): 140757359

約数列:

[1, 13, 17, 31, 53, 139, 169, 221, 403, 527, 689, 901, 1643, 1807, 2363, 2873, 4309, 5239, 6851, 7367, 8957, 11713, 21359, 23491, 27931, 30719, 56017, 73253, 89063, 95771, 125239, 152269, 228377, 277667, 363103, 399347, 728221, 952289, 1245023, 1628107, 2968901, 3882409, 4720339, 12379757, 21165391, 38595713, 50471317, 656127121]

約数ペア:

[(1, 656127121), (13, 50471317), (17, 38595713), (31, 21165391), (53, 12379757), (139, 4720339), (169, 3882409), (221, 2968901), (403, 1628107), (527, 1245023), (689, 952289), (901, 728221), (1643, 399347), (1807, 363103), (2363, 277667), (2873, 228377), (4309, 152269), (5239, 125239), (6851, 95771), (7367, 89063), (8957, 73253), (11713, 56017), (21359, 30719), (23491, 27931)]