139760540

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{20023}}^1$

素因数の和:20381

約数の個数: 24

約数和(自身を含む): 294352800

約数和(自身を除く): 154592260

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 20023, 40046, 80092, 100115, 200230, 400460, 6988027, 13976054, 27952108, 34940135, 69880270, 139760540]

約数ペア:

[(1, 139760540), (2, 69880270), (4, 34940135), (5, 27952108), (10, 13976054), (20, 6988027), (349, 400460), (698, 200230), (1396, 100115), (1745, 80092), (3490, 40046), (6980, 20023)]