1021664260

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{79693}}^1$

素因数の和:80343

約数の個数: 24

約数和(自身を含む): 2148869016

約数和(自身を除く): 1127204756

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 79693, 159386, 318772, 398465, 796930, 1593860, 51083213, 102166426, 204332852, 255416065, 510832130, 1021664260]

約数ペア:

[(1, 1021664260), (2, 510832130), (4, 255416065), (5, 204332852), (10, 102166426), (20, 51083213), (641, 1593860), (1282, 796930), (2564, 398465), (3205, 318772), (6410, 159386), (12820, 79693)]