856557078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 1882766592

約数和(自身を除く): 1026209514

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 251, 402, 502, 653, 753, 871, 1306, 1506, 1742, 1959, 2613, 3263, 3918, 5226, 6526, 8489, 9789, 16817, 16978, 19578, 25467, 33634, 43751, 50451, 50934, 87502, 100902, 131253, 163903, 218621, 262506, 327806, 437242, 491709, 568763, 655863, 983418, 1137526, 1311726, 1706289, 2130739, 3412578, 4261478, 6392217, 10981501, 12784434, 21963002, 32944503, 65889006, 142759513, 285519026, 428278539, 856557078]

約数ペア:

[(1, 856557078), (2, 428278539), (3, 285519026), (6, 142759513), (13, 65889006), (26, 32944503), (39, 21963002), (67, 12784434), (78, 10981501), (134, 6392217), (201, 4261478), (251, 3412578), (402, 2130739), (502, 1706289), (653, 1311726), (753, 1137526), (871, 983418), (1306, 655863), (1506, 568763), (1742, 491709), (1959, 437242), (2613, 327806), (3263, 262506), (3918, 218621), (5226, 163903), (6526, 131253), (8489, 100902), (9789, 87502), (16817, 50934), (16978, 50451), (19578, 43751), (25467, 33634)]