208895918

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 442368000

約数和(自身を除く): 233472082

約数列:

[1, 2, 7, 11, 14, 19, 22, 31, 38, 47, 49, 62, 77, 94, 98, 133, 154, 209, 217, 266, 329, 341, 343, 418, 434, 517, 539, 589, 658, 682, 686, 893, 931, 1034, 1078, 1178, 1457, 1463, 1519, 1786, 1862, 2303, 2387, 2914, 2926, 3038, 3619, 3773, 4123, 4606, 4774, 6251, 6479, 6517, 7238, 7546, 8246, 9823, 10199, 10241, 10633, 12502, 12958, 13034, 16027, 16121, 16709, 19646, 20398, 20482, 21266, 25333, 27683, 28861, 32054, 32242, 33418, 43757, 45353, 50666, 55366, 57722, 68761, 71393, 71687, 87514, 90706, 112189, 116963, 137522, 142786, 143374, 177331, 193781, 202027, 224378, 233926, 304513, 306299, 317471, 354662, 387562, 404054, 481327, 499751, 609026, 612598, 634942, 785323, 962654, 999502, 1356467, 1570646, 2131591, 2222297, 2712934, 3369289, 4263182, 4444594, 5497261, 6738578, 9495269, 10994522, 14921137, 18990538, 29842274, 104447959, 208895918]

約数ペア:

[(1, 208895918), (2, 104447959), (7, 29842274), (11, 18990538), (14, 14921137), (19, 10994522), (22, 9495269), (31, 6738578), (38, 5497261), (47, 4444594), (49, 4263182), (62, 3369289), (77, 2712934), (94, 2222297), (98, 2131591), (133, 1570646), (154, 1356467), (209, 999502), (217, 962654), (266, 785323), (329, 634942), (341, 612598), (343, 609026), (418, 499751), (434, 481327), (517, 404054), (539, 387562), (589, 354662), (658, 317471), (682, 306299), (686, 304513), (893, 233926), (931, 224378), (1034, 202027), (1078, 193781), (1178, 177331), (1457, 143374), (1463, 142786), (1519, 137522), (1786, 116963), (1862, 112189), (2303, 90706), (2387, 87514), (2914, 71687), (2926, 71393), (3038, 68761), (3619, 57722), (3773, 55366), (4123, 50666), (4606, 45353), (4774, 43757), (6251, 33418), (6479, 32242), (6517, 32054), (7238, 28861), (7546, 27683), (8246, 25333), (9823, 21266), (10199, 20482), (10241, 20398), (10633, 19646), (12502, 16709), (12958, 16121), (13034, 16027)]