2644340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 5608680

約数和(自身を除く): 2964340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1213, 2180, 2426, 4852, 6065, 12130, 24260, 132217, 264434, 528868, 661085, 1322170, 2644340]

約数ペア:

[(1, 2644340), (2, 1322170), (4, 661085), (5, 528868), (10, 264434), (20, 132217), (109, 24260), (218, 12130), (436, 6065), (545, 4852), (1090, 2426), (1213, 2180)]