25510331

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 35458560

約数和(自身を除く): 9948229

約数列:

[1, 7, 11, 19, 47, 49, 53, 77, 133, 209, 329, 371, 517, 539, 583, 893, 931, 1007, 1463, 2303, 2491, 2597, 3619, 4081, 6251, 7049, 9823, 10241, 11077, 17437, 25333, 27401, 28567, 43757, 47329, 49343, 68761, 77539, 122059, 191807, 331303, 481327, 520619, 542773, 1342649, 2319121, 3644333, 25510331]

約数ペア:

[(1, 25510331), (7, 3644333), (11, 2319121), (19, 1342649), (47, 542773), (49, 520619), (53, 481327), (77, 331303), (133, 191807), (209, 122059), (329, 77539), (371, 68761), (517, 49343), (539, 47329), (583, 43757), (893, 28567), (931, 27401), (1007, 25333), (1463, 17437), (2303, 11077), (2491, 10241), (2597, 9823), (3619, 7049), (4081, 6251)]