142542640

素因数分解:

$2^4\times 5^1\times {\mathrm{1781783}}^1$

素因数の和:1781796

約数の個数: 20

約数和(自身を含む): 331411824

約数和(自身を除く): 188869184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1781783, 3563566, 7127132, 8908915, 14254264, 17817830, 28508528, 35635660, 71271320, 142542640]

約数ペア:

[(1, 142542640), (2, 71271320), (4, 35635660), (5, 28508528), (8, 17817830), (10, 14254264), (16, 8908915), (20, 7127132), (40, 3563566), (80, 1781783)]