2018905900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{42683}}^1$

素因数の和:42751

約数の個数: 72

約数和(自身を含む): 4890561984

約数和(自身を除く): 2871656084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1892, 2150, 2365, 4300, 4730, 9460, 11825, 23650, 42683, 47300, 85366, 170732, 213415, 426830, 469513, 853660, 939026, 1067075, 1835369, 1878052, 2134150, 2347565, 3670738, 4268300, 4695130, 7341476, 9176845, 9390260, 11737825, 18353690, 20189059, 23475650, 36707380, 40378118, 45884225, 46951300, 80756236, 91768450, 100945295, 183536900, 201890590, 403781180, 504726475, 1009452950, 2018905900]

約数ペア:

[(1, 2018905900), (2, 1009452950), (4, 504726475), (5, 403781180), (10, 201890590), (11, 183536900), (20, 100945295), (22, 91768450), (25, 80756236), (43, 46951300), (44, 45884225), (50, 40378118), (55, 36707380), (86, 23475650), (100, 20189059), (110, 18353690), (172, 11737825), (215, 9390260), (220, 9176845), (275, 7341476), (430, 4695130), (473, 4268300), (550, 3670738), (860, 2347565), (946, 2134150), (1075, 1878052), (1100, 1835369), (1892, 1067075), (2150, 939026), (2365, 853660), (4300, 469513), (4730, 426830), (9460, 213415), (11825, 170732), (23650, 85366), (42683, 47300)]