201656728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 499968000

約数和(自身を除く): 298311272

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 61, 76, 91, 104, 122, 133, 152, 182, 239, 244, 247, 266, 364, 427, 478, 488, 494, 532, 728, 793, 854, 956, 988, 1064, 1159, 1586, 1673, 1708, 1729, 1912, 1976, 2318, 3107, 3172, 3346, 3416, 3458, 4541, 4636, 5551, 6214, 6344, 6692, 6916, 8113, 9082, 9272, 11102, 12428, 13384, 13832, 14579, 15067, 16226, 18164, 21749, 22204, 24856, 29158, 30134, 31787, 32452, 36328, 43498, 44408, 58316, 59033, 60268, 63574, 64904, 86996, 102053, 105469, 116632, 118066, 120536, 127148, 173992, 189527, 204106, 210938, 236132, 254296, 277001, 379054, 408212, 413231, 421876, 472264, 554002, 758108, 816424, 826462, 843752, 1108004, 1326689, 1516216, 1652924, 1939007, 2216008, 2653378, 3305848, 3601013, 3878014, 5306756, 7202026, 7756028, 10613512, 14404052, 15512056, 25207091, 28808104, 50414182, 100828364, 201656728]

約数ペア:

[(1, 201656728), (2, 100828364), (4, 50414182), (7, 28808104), (8, 25207091), (13, 15512056), (14, 14404052), (19, 10613512), (26, 7756028), (28, 7202026), (38, 5306756), (52, 3878014), (56, 3601013), (61, 3305848), (76, 2653378), (91, 2216008), (104, 1939007), (122, 1652924), (133, 1516216), (152, 1326689), (182, 1108004), (239, 843752), (244, 826462), (247, 816424), (266, 758108), (364, 554002), (427, 472264), (478, 421876), (488, 413231), (494, 408212), (532, 379054), (728, 277001), (793, 254296), (854, 236132), (956, 210938), (988, 204106), (1064, 189527), (1159, 173992), (1586, 127148), (1673, 120536), (1708, 118066), (1729, 116632), (1912, 105469), (1976, 102053), (2318, 86996), (3107, 64904), (3172, 63574), (3346, 60268), (3416, 59033), (3458, 58316), (4541, 44408), (4636, 43498), (5551, 36328), (6214, 32452), (6344, 31787), (6692, 30134), (6916, 29158), (8113, 24856), (9082, 22204), (9272, 21749), (11102, 18164), (12428, 16226), (13384, 15067), (13832, 14579)]