1287667580

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{46021}}^1$

素因数の和:47429

約数の個数: 24

約数和(自身を含む): 2706093600

約数和(自身を除く): 1418426020

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2798, 5596, 6995, 13990, 27980, 46021, 92042, 184084, 230105, 460210, 920420, 64383379, 128766758, 257533516, 321916895, 643833790, 1287667580]

約数ペア:

[(1, 1287667580), (2, 643833790), (4, 321916895), (5, 257533516), (10, 128766758), (20, 64383379), (1399, 920420), (2798, 460210), (5596, 230105), (6995, 184084), (13990, 92042), (27980, 46021)]