1290805490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{125687}}^1$

素因数の和:125786

約数の個数: 32

約数和(自身を含む): 2533870080

約数和(自身を除く): 1243064590

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 125687, 251374, 628435, 1256870, 1633931, 3267862, 8169655, 9929273, 16339310, 19858546, 49646365, 99292730, 129080549, 258161098, 645402745, 1290805490]

約数ペア:

[(1, 1290805490), (2, 645402745), (5, 258161098), (10, 129080549), (13, 99292730), (26, 49646365), (65, 19858546), (79, 16339310), (130, 9929273), (158, 8169655), (395, 3267862), (790, 1633931), (1027, 1256870), (2054, 628435), (5135, 251374), (10270, 125687)]