39519440

素因数分解:

$2^4\times 5^1\times {\mathrm{493993}}^1$

素因数の和:494006

約数の個数: 20

約数和(自身を含む): 91882884

約数和(自身を除く): 52363444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 493993, 987986, 1975972, 2469965, 3951944, 4939930, 7903888, 9879860, 19759720, 39519440]

約数ペア:

[(1, 39519440), (2, 19759720), (4, 9879860), (5, 7903888), (8, 4939930), (10, 3951944), (16, 2469965), (20, 1975972), (40, 987986), (80, 493993)]