257586896

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1132

約数の個数: 80

約数和(自身を含む): 595973760

約数和(自身を除く): 338386864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 61, 74, 112, 122, 148, 244, 259, 296, 427, 488, 518, 592, 854, 976, 1019, 1036, 1708, 2038, 2072, 2257, 3416, 4076, 4144, 4514, 6832, 7133, 8152, 9028, 14266, 15799, 16304, 18056, 28532, 31598, 36112, 37703, 57064, 62159, 63196, 75406, 114128, 124318, 126392, 150812, 248636, 252784, 263921, 301624, 435113, 497272, 527842, 603248, 870226, 994544, 1055684, 1740452, 2111368, 2299883, 3480904, 4222736, 4599766, 6961808, 9199532, 16099181, 18399064, 32198362, 36798128, 64396724, 128793448, 257586896]

約数ペア:

[(1, 257586896), (2, 128793448), (4, 64396724), (7, 36798128), (8, 32198362), (14, 18399064), (16, 16099181), (28, 9199532), (37, 6961808), (56, 4599766), (61, 4222736), (74, 3480904), (112, 2299883), (122, 2111368), (148, 1740452), (244, 1055684), (259, 994544), (296, 870226), (427, 603248), (488, 527842), (518, 497272), (592, 435113), (854, 301624), (976, 263921), (1019, 252784), (1036, 248636), (1708, 150812), (2038, 126392), (2072, 124318), (2257, 114128), (3416, 75406), (4076, 63196), (4144, 62159), (4514, 57064), (6832, 37703), (7133, 36112), (8152, 31598), (9028, 28532), (14266, 18056), (15799, 16304)]