78643838

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 153280512

約数和(自身を除く): 74636674

約数列:

[1, 2, 7, 13, 14, 26, 31, 53, 62, 91, 106, 182, 217, 263, 371, 403, 434, 526, 689, 742, 806, 1378, 1643, 1841, 2821, 3286, 3419, 3682, 4823, 5642, 6838, 8153, 9646, 11501, 13939, 16306, 21359, 23002, 23933, 27878, 42718, 47866, 57071, 97573, 105989, 114142, 149513, 181207, 195146, 211978, 299026, 362414, 432109, 741923, 864218, 1268449, 1483846, 2536898, 3024763, 5617417, 6049526, 11234834, 39321919, 78643838]

約数ペア:

[(1, 78643838), (2, 39321919), (7, 11234834), (13, 6049526), (14, 5617417), (26, 3024763), (31, 2536898), (53, 1483846), (62, 1268449), (91, 864218), (106, 741923), (182, 432109), (217, 362414), (263, 299026), (371, 211978), (403, 195146), (434, 181207), (526, 149513), (689, 114142), (742, 105989), (806, 97573), (1378, 57071), (1643, 47866), (1841, 42718), (2821, 27878), (3286, 23933), (3419, 23002), (3682, 21359), (4823, 16306), (5642, 13939), (6838, 11501), (8153, 9646)]