8742860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 21155904

約数和(自身を除く): 12413044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 317, 394, 634, 788, 985, 1268, 1379, 1585, 1970, 2219, 2758, 3170, 3940, 4438, 5516, 6340, 6895, 8876, 11095, 13790, 22190, 27580, 44380, 62449, 124898, 249796, 312245, 437143, 624490, 874286, 1248980, 1748572, 2185715, 4371430, 8742860]

約数ペア:

[(1, 8742860), (2, 4371430), (4, 2185715), (5, 1748572), (7, 1248980), (10, 874286), (14, 624490), (20, 437143), (28, 312245), (35, 249796), (70, 124898), (140, 62449), (197, 44380), (317, 27580), (394, 22190), (634, 13790), (788, 11095), (985, 8876), (1268, 6895), (1379, 6340), (1585, 5516), (1970, 4438), (2219, 3940), (2758, 3170)]