130079440

素因数分解:

$2^4\times 5^1\times {\mathrm{1625993}}^1$

素因数の和:1626006

約数の個数: 20

約数和(自身を含む): 302434884

約数和(自身を除く): 172355444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1625993, 3251986, 6503972, 8129965, 13007944, 16259930, 26015888, 32519860, 65039720, 130079440]

約数ペア:

[(1, 130079440), (2, 65039720), (4, 32519860), (5, 26015888), (8, 16259930), (10, 13007944), (16, 8129965), (20, 6503972), (40, 3251986), (80, 1625993)]