31334140

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3907}}^1$

素因数の和:4317

約数の個数: 24

約数和(自身を含む): 65982672

約数和(自身を除く): 34648532

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 3907, 4010, 7814, 8020, 15628, 19535, 39070, 78140, 1566707, 3133414, 6266828, 7833535, 15667070, 31334140]

約数ペア:

[(1, 31334140), (2, 15667070), (4, 7833535), (5, 6266828), (10, 3133414), (20, 1566707), (401, 78140), (802, 39070), (1604, 19535), (2005, 15628), (3907, 8020), (4010, 7814)]