31091520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:392

約数の個数: 112

約数和(自身を含む): 99852480

約数和(自身を除く): 68760960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 139, 160, 192, 233, 240, 278, 320, 417, 466, 480, 556, 695, 699, 834, 932, 960, 1112, 1165, 1390, 1398, 1668, 1864, 2085, 2224, 2330, 2780, 2796, 3336, 3495, 3728, 4170, 4448, 4660, 5560, 5592, 6672, 6990, 7456, 8340, 8896, 9320, 11120, 11184, 13344, 13980, 14912, 16680, 18640, 22240, 22368, 26688, 27960, 32387, 33360, 37280, 44480, 44736, 55920, 64774, 66720, 74560, 97161, 111840, 129548, 133440, 161935, 194322, 223680, 259096, 323870, 388644, 485805, 518192, 647740, 777288, 971610, 1036384, 1295480, 1554576, 1943220, 2072768, 2590960, 3109152, 3886440, 5181920, 6218304, 7772880, 10363840, 15545760, 31091520]

約数ペア:

[(1, 31091520), (2, 15545760), (3, 10363840), (4, 7772880), (5, 6218304), (6, 5181920), (8, 3886440), (10, 3109152), (12, 2590960), (15, 2072768), (16, 1943220), (20, 1554576), (24, 1295480), (30, 1036384), (32, 971610), (40, 777288), (48, 647740), (60, 518192), (64, 485805), (80, 388644), (96, 323870), (120, 259096), (139, 223680), (160, 194322), (192, 161935), (233, 133440), (240, 129548), (278, 111840), (320, 97161), (417, 74560), (466, 66720), (480, 64774), (556, 55920), (695, 44736), (699, 44480), (834, 37280), (932, 33360), (960, 32387), (1112, 27960), (1165, 26688), (1390, 22368), (1398, 22240), (1668, 18640), (1864, 16680), (2085, 14912), (2224, 13980), (2330, 13344), (2780, 11184), (2796, 11120), (3336, 9320), (3495, 8896), (3728, 8340), (4170, 7456), (4448, 6990), (4660, 6672), (5560, 5592)]