640996840510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28631}}^1\times {\mathrm{172217}}^1$

素因数の和:200868

約数の個数: 32

約数和(自身を含む): 1242598335552

約数和(自身を除く): 601601495042

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 28631, 57262, 143155, 172217, 286310, 344434, 372203, 744406, 861085, 1722170, 1861015, 2238821, 3722030, 4477642, 11194105, 22388210, 4930744927, 9861489854, 24653724635, 49307449270, 64099684051, 128199368102, 320498420255, 640996840510]

約数ペア:

[(1, 640996840510), (2, 320498420255), (5, 128199368102), (10, 64099684051), (13, 49307449270), (26, 24653724635), (65, 9861489854), (130, 4930744927), (28631, 22388210), (57262, 11194105), (143155, 4477642), (172217, 3722030), (286310, 2238821), (344434, 1861015), (372203, 1722170), (744406, 861085)]