207972490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:979

約数の個数: 64

約数和(自身を含む): 427991040

約数和(自身を除く): 220018550

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 71, 110, 142, 155, 310, 341, 355, 682, 710, 781, 859, 1562, 1705, 1718, 2201, 3410, 3905, 4295, 4402, 7810, 8590, 9449, 11005, 18898, 22010, 24211, 26629, 47245, 48422, 53258, 60989, 94490, 121055, 121978, 133145, 242110, 266290, 292919, 304945, 585838, 609890, 670879, 1341758, 1464595, 1890659, 2929190, 3354395, 3781318, 6708790, 9453295, 18906590, 20797249, 41594498, 103986245, 207972490]

約数ペア:

[(1, 207972490), (2, 103986245), (5, 41594498), (10, 20797249), (11, 18906590), (22, 9453295), (31, 6708790), (55, 3781318), (62, 3354395), (71, 2929190), (110, 1890659), (142, 1464595), (155, 1341758), (310, 670879), (341, 609890), (355, 585838), (682, 304945), (710, 292919), (781, 266290), (859, 242110), (1562, 133145), (1705, 121978), (1718, 121055), (2201, 94490), (3410, 60989), (3905, 53258), (4295, 48422), (4402, 47245), (7810, 26629), (8590, 24211), (9449, 22010), (11005, 18898)]