20543958440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{1907}}^1$

素因数の和:2235

約数の個数: 128

約数和(自身を含む): 49331721600

約数和(自身を除く): 28787763160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 251, 290, 296, 370, 502, 580, 740, 1004, 1073, 1160, 1255, 1480, 1907, 2008, 2146, 2510, 3814, 4292, 5020, 5365, 7279, 7628, 8584, 9287, 9535, 10040, 10730, 14558, 15256, 18574, 19070, 21460, 29116, 36395, 37148, 38140, 42920, 46435, 55303, 58232, 70559, 72790, 74296, 76280, 92870, 110606, 141118, 145580, 185740, 221212, 269323, 276515, 282236, 291160, 352795, 371480, 442424, 478657, 538646, 553030, 564472, 705590, 957314, 1077292, 1106060, 1346615, 1411180, 1914628, 2046211, 2154584, 2212120, 2393285, 2693230, 2822360, 3829256, 4092422, 4786570, 5386460, 8184844, 9573140, 10231055, 10772920, 13881053, 16369688, 17710309, 19146280, 20462110, 27762106, 35420618, 40924220, 55524212, 69405265, 70841236, 81848440, 88551545, 111048424, 138810530, 141682472, 177103090, 277621060, 354206180, 513598961, 555242120, 708412360, 1027197922, 2054395844, 2567994805, 4108791688, 5135989610, 10271979220, 20543958440]

約数ペア:

[(1, 20543958440), (2, 10271979220), (4, 5135989610), (5, 4108791688), (8, 2567994805), (10, 2054395844), (20, 1027197922), (29, 708412360), (37, 555242120), (40, 513598961), (58, 354206180), (74, 277621060), (116, 177103090), (145, 141682472), (148, 138810530), (185, 111048424), (232, 88551545), (251, 81848440), (290, 70841236), (296, 69405265), (370, 55524212), (502, 40924220), (580, 35420618), (740, 27762106), (1004, 20462110), (1073, 19146280), (1160, 17710309), (1255, 16369688), (1480, 13881053), (1907, 10772920), (2008, 10231055), (2146, 9573140), (2510, 8184844), (3814, 5386460), (4292, 4786570), (5020, 4092422), (5365, 3829256), (7279, 2822360), (7628, 2693230), (8584, 2393285), (9287, 2212120), (9535, 2154584), (10040, 2046211), (10730, 1914628), (14558, 1411180), (15256, 1346615), (18574, 1106060), (19070, 1077292), (21460, 957314), (29116, 705590), (36395, 564472), (37148, 553030), (38140, 538646), (42920, 478657), (46435, 442424), (55303, 371480), (58232, 352795), (70559, 291160), (72790, 282236), (74296, 276515), (76280, 269323), (92870, 221212), (110606, 185740), (141118, 145580)]