71892751

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 94556160

約数和(自身を除く): 22663409

約数列:

[1, 7, 19, 31, 47, 49, 53, 133, 217, 329, 371, 589, 893, 931, 1007, 1457, 1519, 1643, 2303, 2491, 2597, 4123, 6251, 7049, 10199, 11501, 17437, 27683, 28861, 31217, 43757, 47329, 49343, 71393, 77221, 80507, 122059, 193781, 218519, 331303, 540547, 1356467, 1467199, 1529633, 2319121, 3783829, 10270393, 71892751]

約数ペア:

[(1, 71892751), (7, 10270393), (19, 3783829), (31, 2319121), (47, 1529633), (49, 1467199), (53, 1356467), (133, 540547), (217, 331303), (329, 218519), (371, 193781), (589, 122059), (893, 80507), (931, 77221), (1007, 71393), (1457, 49343), (1519, 47329), (1643, 43757), (2303, 31217), (2491, 28861), (2597, 27683), (4123, 17437), (6251, 11501), (7049, 10199)]