40040720

素因数分解:

$2^4\times 5^1\times {\mathrm{500509}}^1$

素因数の和:500522

約数の個数: 20

約数和(自身を含む): 93094860

約数和(自身を除く): 53054140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500509, 1001018, 2002036, 2502545, 4004072, 5005090, 8008144, 10010180, 20020360, 40040720]

約数ペア:

[(1, 40040720), (2, 20020360), (4, 10010180), (5, 8008144), (8, 5005090), (10, 4004072), (16, 2502545), (20, 2002036), (40, 1001018), (80, 500509)]