51208180

素因数分解:

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

素因数の和:564

約数の個数: 48

約数和(自身を含む): 111068496

約数和(自身を除く): 59860316

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 317, 394, 410, 634, 788, 820, 985, 1268, 1585, 1970, 3170, 3940, 6340, 8077, 12997, 16154, 25994, 32308, 40385, 51988, 62449, 64985, 80770, 124898, 129970, 161540, 249796, 259940, 312245, 624490, 1248980, 2560409, 5120818, 10241636, 12802045, 25604090, 51208180]

約数ペア:

[(1, 51208180), (2, 25604090), (4, 12802045), (5, 10241636), (10, 5120818), (20, 2560409), (41, 1248980), (82, 624490), (164, 312245), (197, 259940), (205, 249796), (317, 161540), (394, 129970), (410, 124898), (634, 80770), (788, 64985), (820, 62449), (985, 51988), (1268, 40385), (1585, 32308), (1970, 25994), (3170, 16154), (3940, 12997), (6340, 8077)]