25604090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 47600784

約数和(自身を除く): 21996694

約数列:

[1, 2, 5, 10, 41, 82, 197, 205, 317, 394, 410, 634, 985, 1585, 1970, 3170, 8077, 12997, 16154, 25994, 40385, 62449, 64985, 80770, 124898, 129970, 312245, 624490, 2560409, 5120818, 12802045, 25604090]

約数ペア:

[(1, 25604090), (2, 12802045), (5, 5120818), (10, 2560409), (41, 624490), (82, 312245), (197, 129970), (205, 124898), (317, 80770), (394, 64985), (410, 62449), (634, 40385), (985, 25994), (1585, 16154), (1970, 12997), (3170, 8077)]