81615240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:396

約数の個数: 192

約数和(自身を含む): 306633600

約数和(自身を除く): 225018360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 139, 140, 168, 180, 210, 233, 252, 278, 280, 315, 360, 417, 420, 466, 504, 556, 630, 695, 699, 834, 840, 932, 973, 1112, 1165, 1251, 1260, 1390, 1398, 1631, 1668, 1864, 1946, 2085, 2097, 2330, 2502, 2520, 2780, 2796, 2919, 3262, 3336, 3495, 3892, 4170, 4194, 4660, 4865, 4893, 5004, 5560, 5592, 5838, 6255, 6524, 6990, 7784, 8155, 8340, 8388, 8757, 9320, 9730, 9786, 10008, 10485, 11676, 12510, 13048, 13980, 14595, 14679, 16310, 16680, 16776, 17514, 19460, 19572, 20970, 23352, 24465, 25020, 27960, 29190, 29358, 32387, 32620, 35028, 38920, 39144, 41940, 43785, 48930, 50040, 58380, 58716, 64774, 65240, 70056, 73395, 83880, 87570, 97161, 97860, 116760, 117432, 129548, 146790, 161935, 175140, 194322, 195720, 226709, 259096, 291483, 293580, 323870, 350280, 388644, 453418, 485805, 582966, 587160, 647740, 680127, 777288, 906836, 971610, 1133545, 1165932, 1295480, 1360254, 1457415, 1813672, 1943220, 2040381, 2267090, 2331864, 2720508, 2914830, 3400635, 3886440, 4080762, 4534180, 5441016, 5829660, 6801270, 8161524, 9068360, 10201905, 11659320, 13602540, 16323048, 20403810, 27205080, 40807620, 81615240]

約数ペア:

[(1, 81615240), (2, 40807620), (3, 27205080), (4, 20403810), (5, 16323048), (6, 13602540), (7, 11659320), (8, 10201905), (9, 9068360), (10, 8161524), (12, 6801270), (14, 5829660), (15, 5441016), (18, 4534180), (20, 4080762), (21, 3886440), (24, 3400635), (28, 2914830), (30, 2720508), (35, 2331864), (36, 2267090), (40, 2040381), (42, 1943220), (45, 1813672), (56, 1457415), (60, 1360254), (63, 1295480), (70, 1165932), (72, 1133545), (84, 971610), (90, 906836), (105, 777288), (120, 680127), (126, 647740), (139, 587160), (140, 582966), (168, 485805), (180, 453418), (210, 388644), (233, 350280), (252, 323870), (278, 293580), (280, 291483), (315, 259096), (360, 226709), (417, 195720), (420, 194322), (466, 175140), (504, 161935), (556, 146790), (630, 129548), (695, 117432), (699, 116760), (834, 97860), (840, 97161), (932, 87570), (973, 83880), (1112, 73395), (1165, 70056), (1251, 65240), (1260, 64774), (1390, 58716), (1398, 58380), (1631, 50040), (1668, 48930), (1864, 43785), (1946, 41940), (2085, 39144), (2097, 38920), (2330, 35028), (2502, 32620), (2520, 32387), (2780, 29358), (2796, 29190), (2919, 27960), (3262, 25020), (3336, 24465), (3495, 23352), (3892, 20970), (4170, 19572), (4194, 19460), (4660, 17514), (4865, 16776), (4893, 16680), (5004, 16310), (5560, 14679), (5592, 14595), (5838, 13980), (6255, 13048), (6524, 12510), (6990, 11676), (7784, 10485), (8155, 10008), (8340, 9786), (8388, 9730), (8757, 9320)]