81534180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 192

約数和(自身を含む): 285626880

約数和(自身を除く): 204092700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 109, 130, 137, 140, 156, 182, 195, 210, 218, 260, 273, 274, 327, 364, 390, 411, 420, 436, 455, 545, 546, 548, 654, 685, 763, 780, 822, 910, 959, 1090, 1092, 1308, 1365, 1370, 1417, 1526, 1635, 1644, 1781, 1820, 1918, 2055, 2180, 2289, 2730, 2740, 2834, 2877, 3052, 3270, 3562, 3815, 3836, 4110, 4251, 4578, 4795, 5343, 5460, 5668, 5754, 6540, 7085, 7124, 7630, 8220, 8502, 8905, 9156, 9590, 9919, 10686, 11445, 11508, 12467, 14170, 14385, 14933, 15260, 17004, 17810, 19180, 19838, 21255, 21372, 22890, 24934, 26715, 28340, 28770, 29757, 29866, 35620, 37401, 39676, 42510, 44799, 45780, 49595, 49868, 53430, 57540, 59514, 59732, 62335, 74665, 74802, 85020, 89598, 99190, 104531, 106860, 119028, 124670, 148785, 149330, 149604, 179196, 187005, 194129, 198380, 209062, 223995, 249340, 297570, 298660, 313593, 374010, 388258, 418124, 447990, 522655, 582387, 595140, 627186, 748020, 776516, 895980, 970645, 1045310, 1164774, 1254372, 1358903, 1567965, 1941290, 2090620, 2329548, 2717806, 2911935, 3135930, 3882580, 4076709, 5435612, 5823870, 6271860, 6794515, 8153418, 11647740, 13589030, 16306836, 20383545, 27178060, 40767090, 81534180]

約数ペア:

[(1, 81534180), (2, 40767090), (3, 27178060), (4, 20383545), (5, 16306836), (6, 13589030), (7, 11647740), (10, 8153418), (12, 6794515), (13, 6271860), (14, 5823870), (15, 5435612), (20, 4076709), (21, 3882580), (26, 3135930), (28, 2911935), (30, 2717806), (35, 2329548), (39, 2090620), (42, 1941290), (52, 1567965), (60, 1358903), (65, 1254372), (70, 1164774), (78, 1045310), (84, 970645), (91, 895980), (105, 776516), (109, 748020), (130, 627186), (137, 595140), (140, 582387), (156, 522655), (182, 447990), (195, 418124), (210, 388258), (218, 374010), (260, 313593), (273, 298660), (274, 297570), (327, 249340), (364, 223995), (390, 209062), (411, 198380), (420, 194129), (436, 187005), (455, 179196), (545, 149604), (546, 149330), (548, 148785), (654, 124670), (685, 119028), (763, 106860), (780, 104531), (822, 99190), (910, 89598), (959, 85020), (1090, 74802), (1092, 74665), (1308, 62335), (1365, 59732), (1370, 59514), (1417, 57540), (1526, 53430), (1635, 49868), (1644, 49595), (1781, 45780), (1820, 44799), (1918, 42510), (2055, 39676), (2180, 37401), (2289, 35620), (2730, 29866), (2740, 29757), (2834, 28770), (2877, 28340), (3052, 26715), (3270, 24934), (3562, 22890), (3815, 21372), (3836, 21255), (4110, 19838), (4251, 19180), (4578, 17810), (4795, 17004), (5343, 15260), (5460, 14933), (5668, 14385), (5754, 14170), (6540, 12467), (7085, 11508), (7124, 11445), (7630, 10686), (8220, 9919), (8502, 9590), (8905, 9156)]