99599440

素因数分解:

$2^4\times 5^1\times {\mathrm{1244993}}^1$

素因数の和:1245006

約数の個数: 20

約数和(自身を含む): 231568884

約数和(自身を除く): 131969444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1244993, 2489986, 4979972, 6224965, 9959944, 12449930, 19919888, 24899860, 49799720, 99599440]

約数ペア:

[(1, 99599440), (2, 49799720), (4, 24899860), (5, 19919888), (8, 12449930), (10, 9959944), (16, 6224965), (20, 4979972), (40, 2489986), (80, 1244993)]