90639440

素因数分解:

$2^4\times 5^1\times {\mathrm{1132993}}^1$

素因数の和:1133006

約数の個数: 20

約数和(自身を含む): 210736884

約数和(自身を除く): 120097444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1132993, 2265986, 4531972, 5664965, 9063944, 11329930, 18127888, 22659860, 45319720, 90639440]

約数ペア:

[(1, 90639440), (2, 45319720), (4, 22659860), (5, 18127888), (8, 11329930), (10, 9063944), (16, 5664965), (20, 4531972), (40, 2265986), (80, 1132993)]