261914640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:817

約数の個数: 160

約数和(自身を含む): 882610176

約数和(自身を除く): 620695536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 127, 130, 156, 195, 208, 240, 254, 260, 312, 381, 390, 508, 520, 624, 635, 661, 762, 780, 1016, 1040, 1270, 1322, 1524, 1560, 1651, 1905, 1983, 2032, 2540, 2644, 3048, 3120, 3302, 3305, 3810, 3966, 4953, 5080, 5288, 6096, 6604, 6610, 7620, 7932, 8255, 8593, 9906, 9915, 10160, 10576, 13208, 13220, 15240, 15864, 16510, 17186, 19812, 19830, 24765, 25779, 26416, 26440, 30480, 31728, 33020, 34372, 39624, 39660, 42965, 49530, 51558, 52880, 66040, 68744, 79248, 79320, 83947, 85930, 99060, 103116, 128895, 132080, 137488, 158640, 167894, 171860, 198120, 206232, 251841, 257790, 335788, 343720, 396240, 412464, 419735, 503682, 515580, 671576, 687440, 839470, 1007364, 1031160, 1091311, 1259205, 1343152, 1678940, 2014728, 2062320, 2182622, 2518410, 3273933, 3357880, 4029456, 4365244, 5036820, 5456555, 6547866, 6715760, 8730488, 10073640, 10913110, 13095732, 16369665, 17460976, 20147280, 21826220, 26191464, 32739330, 43652440, 52382928, 65478660, 87304880, 130957320, 261914640]

約数ペア:

[(1, 261914640), (2, 130957320), (3, 87304880), (4, 65478660), (5, 52382928), (6, 43652440), (8, 32739330), (10, 26191464), (12, 21826220), (13, 20147280), (15, 17460976), (16, 16369665), (20, 13095732), (24, 10913110), (26, 10073640), (30, 8730488), (39, 6715760), (40, 6547866), (48, 5456555), (52, 5036820), (60, 4365244), (65, 4029456), (78, 3357880), (80, 3273933), (104, 2518410), (120, 2182622), (127, 2062320), (130, 2014728), (156, 1678940), (195, 1343152), (208, 1259205), (240, 1091311), (254, 1031160), (260, 1007364), (312, 839470), (381, 687440), (390, 671576), (508, 515580), (520, 503682), (624, 419735), (635, 412464), (661, 396240), (762, 343720), (780, 335788), (1016, 257790), (1040, 251841), (1270, 206232), (1322, 198120), (1524, 171860), (1560, 167894), (1651, 158640), (1905, 137488), (1983, 132080), (2032, 128895), (2540, 103116), (2644, 99060), (3048, 85930), (3120, 83947), (3302, 79320), (3305, 79248), (3810, 68744), (3966, 66040), (4953, 52880), (5080, 51558), (5288, 49530), (6096, 42965), (6604, 39660), (6610, 39624), (7620, 34372), (7932, 33020), (8255, 31728), (8593, 30480), (9906, 26440), (9915, 26416), (10160, 25779), (10576, 24765), (13208, 19830), (13220, 19812), (15240, 17186), (15864, 16510)]