212213260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1515809}}^1$

素因数の和:1515825

約数の個数: 24

約数和(自身を含む): 509312160

約数和(自身を除く): 297098900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1515809, 3031618, 6063236, 7579045, 10610663, 15158090, 21221326, 30316180, 42442652, 53053315, 106106630, 212213260]

約数ペア:

[(1, 212213260), (2, 106106630), (4, 53053315), (5, 42442652), (7, 30316180), (10, 21221326), (14, 15158090), (20, 10610663), (28, 7579045), (35, 6063236), (70, 3031618), (140, 1515809)]