1248980

素因数分解:

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

素因数の和:523

約数の個数: 24

約数和(自身を含む): 2644488

約数和(自身を除く): 1395508

約数列:

[1, 2, 4, 5, 10, 20, 197, 317, 394, 634, 788, 985, 1268, 1585, 1970, 3170, 3940, 6340, 62449, 124898, 249796, 312245, 624490, 1248980]

約数ペア:

[(1, 1248980), (2, 624490), (4, 312245), (5, 249796), (10, 124898), (20, 62449), (197, 6340), (317, 3940), (394, 3170), (634, 1970), (788, 1585), (985, 1268)]