20161587640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{1759}}^1$

素因数の和:2081

約数の個数: 128

約数和(自身を含む): 48299328000

約数和(自身を除く): 28137740360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 41, 58, 82, 116, 145, 164, 205, 232, 241, 290, 328, 410, 482, 580, 820, 964, 1160, 1189, 1205, 1640, 1759, 1928, 2378, 2410, 3518, 4756, 4820, 5945, 6989, 7036, 8795, 9512, 9640, 9881, 11890, 13978, 14072, 17590, 19762, 23780, 27956, 34945, 35180, 39524, 47560, 49405, 51011, 55912, 69890, 70360, 72119, 79048, 98810, 102022, 139780, 144238, 197620, 204044, 255055, 279560, 286549, 288476, 360595, 395240, 408088, 423919, 510110, 573098, 576952, 721190, 847838, 1020220, 1146196, 1432745, 1442380, 1695676, 2040440, 2091451, 2119595, 2292392, 2865490, 2884760, 3391352, 4182902, 4239190, 5730980, 8365804, 8478380, 10457255, 11461960, 12293651, 16731608, 16956760, 17380679, 20914510, 24587302, 34761358, 41829020, 49174604, 61468255, 69522716, 83658040, 86903395, 98349208, 122936510, 139045432, 173806790, 245873020, 347613580, 491746040, 504039691, 695227160, 1008079382, 2016158764, 2520198455, 4032317528, 5040396910, 10080793820, 20161587640]

約数ペア:

[(1, 20161587640), (2, 10080793820), (4, 5040396910), (5, 4032317528), (8, 2520198455), (10, 2016158764), (20, 1008079382), (29, 695227160), (40, 504039691), (41, 491746040), (58, 347613580), (82, 245873020), (116, 173806790), (145, 139045432), (164, 122936510), (205, 98349208), (232, 86903395), (241, 83658040), (290, 69522716), (328, 61468255), (410, 49174604), (482, 41829020), (580, 34761358), (820, 24587302), (964, 20914510), (1160, 17380679), (1189, 16956760), (1205, 16731608), (1640, 12293651), (1759, 11461960), (1928, 10457255), (2378, 8478380), (2410, 8365804), (3518, 5730980), (4756, 4239190), (4820, 4182902), (5945, 3391352), (6989, 2884760), (7036, 2865490), (8795, 2292392), (9512, 2119595), (9640, 2091451), (9881, 2040440), (11890, 1695676), (13978, 1442380), (14072, 1432745), (17590, 1146196), (19762, 1020220), (23780, 847838), (27956, 721190), (34945, 576952), (35180, 573098), (39524, 510110), (47560, 423919), (49405, 408088), (51011, 395240), (55912, 360595), (69890, 288476), (70360, 286549), (72119, 279560), (79048, 255055), (98810, 204044), (102022, 197620), (139780, 144238)]