839777780

素因数分解:

$2^2\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{20963}}^1$

素因数の和:22975

約数の個数: 24

約数和(自身を含む): 1764497952

約数和(自身を除く): 924720172

約数列:

[1, 2, 4, 5, 10, 20, 2003, 4006, 8012, 10015, 20030, 20963, 40060, 41926, 83852, 104815, 209630, 419260, 41988889, 83977778, 167955556, 209944445, 419888890, 839777780]

約数ペア:

[(1, 839777780), (2, 419888890), (4, 209944445), (5, 167955556), (10, 83977778), (20, 41988889), (2003, 419260), (4006, 209630), (8012, 104815), (10015, 83852), (20030, 41926), (20963, 40060)]