129039080

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8293}}^1$

素因数の和:8693

約数の個数: 32

約数和(自身を含む): 291119400

約数和(自身を除く): 162080320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 8293, 15560, 16586, 33172, 41465, 66344, 82930, 165860, 331720, 3225977, 6451954, 12903908, 16129885, 25807816, 32259770, 64519540, 129039080]

約数ペア:

[(1, 129039080), (2, 64519540), (4, 32259770), (5, 25807816), (8, 16129885), (10, 12903908), (20, 6451954), (40, 3225977), (389, 331720), (778, 165860), (1556, 82930), (1945, 66344), (3112, 41465), (3890, 33172), (7780, 16586), (8293, 15560)]