20810160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4129}}^1$

素因数の和:4155

約数の個数: 120

約数和(自身を含む): 79890720

約数和(自身を除く): 59080560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4129, 5040, 8258, 12387, 16516, 20645, 24774, 28903, 33032, 37161, 41290, 49548, 57806, 61935, 66064, 74322, 82580, 86709, 99096, 115612, 123870, 144515, 148644, 165160, 173418, 185805, 198192, 231224, 247740, 260127, 289030, 297288, 330320, 346836, 371610, 433545, 462448, 495480, 520254, 578060, 594576, 693672, 743220, 867090, 990960, 1040508, 1156120, 1300635, 1387344, 1486440, 1734180, 2081016, 2312240, 2601270, 2972880, 3468360, 4162032, 5202540, 6936720, 10405080, 20810160]

約数ペア:

[(1, 20810160), (2, 10405080), (3, 6936720), (4, 5202540), (5, 4162032), (6, 3468360), (7, 2972880), (8, 2601270), (9, 2312240), (10, 2081016), (12, 1734180), (14, 1486440), (15, 1387344), (16, 1300635), (18, 1156120), (20, 1040508), (21, 990960), (24, 867090), (28, 743220), (30, 693672), (35, 594576), (36, 578060), (40, 520254), (42, 495480), (45, 462448), (48, 433545), (56, 371610), (60, 346836), (63, 330320), (70, 297288), (72, 289030), (80, 260127), (84, 247740), (90, 231224), (105, 198192), (112, 185805), (120, 173418), (126, 165160), (140, 148644), (144, 144515), (168, 123870), (180, 115612), (210, 99096), (240, 86709), (252, 82580), (280, 74322), (315, 66064), (336, 61935), (360, 57806), (420, 49548), (504, 41290), (560, 37161), (630, 33032), (720, 28903), (840, 24774), (1008, 20645), (1260, 16516), (1680, 12387), (2520, 8258), (4129, 5040)]