81411120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:612

約数の個数: 240

約数和(自身を含む): 323818560

約数和(自身を除く): 242407440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 48, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 105, 112, 116, 120, 126, 140, 144, 145, 168, 174, 180, 203, 210, 232, 240, 252, 261, 280, 290, 315, 336, 348, 360, 406, 420, 435, 464, 504, 522, 557, 560, 580, 609, 630, 696, 720, 812, 840, 870, 1008, 1015, 1044, 1114, 1160, 1218, 1260, 1305, 1392, 1624, 1671, 1680, 1740, 1827, 2030, 2088, 2228, 2320, 2436, 2520, 2610, 2785, 3045, 3248, 3342, 3480, 3654, 3899, 4060, 4176, 4456, 4872, 5013, 5040, 5220, 5570, 6090, 6684, 6960, 7308, 7798, 8120, 8355, 8912, 9135, 9744, 10026, 10440, 11140, 11697, 12180, 13368, 14616, 15596, 16153, 16240, 16710, 18270, 19495, 20052, 20880, 22280, 23394, 24360, 25065, 26736, 29232, 31192, 32306, 33420, 35091, 36540, 38990, 40104, 44560, 46788, 48459, 48720, 50130, 58485, 62384, 64612, 66840, 70182, 73080, 77980, 80208, 80765, 93576, 96918, 100260, 113071, 116970, 129224, 133680, 140364, 145377, 146160, 155960, 161530, 175455, 187152, 193836, 200520, 226142, 233940, 242295, 258448, 280728, 290754, 311920, 323060, 339213, 350910, 387672, 401040, 452284, 467880, 484590, 561456, 565355, 581508, 646120, 678426, 701820, 726885, 775344, 904568, 935760, 969180, 1017639, 1130710, 1163016, 1292240, 1356852, 1403640, 1453770, 1696065, 1809136, 1938360, 2035278, 2261420, 2326032, 2713704, 2807280, 2907540, 3392130, 3876720, 4070556, 4522840, 5088195, 5427408, 5815080, 6784260, 8141112, 9045680, 10176390, 11630160, 13568520, 16282224, 20352780, 27137040, 40705560, 81411120]

約数ペア:

[(1, 81411120), (2, 40705560), (3, 27137040), (4, 20352780), (5, 16282224), (6, 13568520), (7, 11630160), (8, 10176390), (9, 9045680), (10, 8141112), (12, 6784260), (14, 5815080), (15, 5427408), (16, 5088195), (18, 4522840), (20, 4070556), (21, 3876720), (24, 3392130), (28, 2907540), (29, 2807280), (30, 2713704), (35, 2326032), (36, 2261420), (40, 2035278), (42, 1938360), (45, 1809136), (48, 1696065), (56, 1453770), (58, 1403640), (60, 1356852), (63, 1292240), (70, 1163016), (72, 1130710), (80, 1017639), (84, 969180), (87, 935760), (90, 904568), (105, 775344), (112, 726885), (116, 701820), (120, 678426), (126, 646120), (140, 581508), (144, 565355), (145, 561456), (168, 484590), (174, 467880), (180, 452284), (203, 401040), (210, 387672), (232, 350910), (240, 339213), (252, 323060), (261, 311920), (280, 290754), (290, 280728), (315, 258448), (336, 242295), (348, 233940), (360, 226142), (406, 200520), (420, 193836), (435, 187152), (464, 175455), (504, 161530), (522, 155960), (557, 146160), (560, 145377), (580, 140364), (609, 133680), (630, 129224), (696, 116970), (720, 113071), (812, 100260), (840, 96918), (870, 93576), (1008, 80765), (1015, 80208), (1044, 77980), (1114, 73080), (1160, 70182), (1218, 66840), (1260, 64612), (1305, 62384), (1392, 58485), (1624, 50130), (1671, 48720), (1680, 48459), (1740, 46788), (1827, 44560), (2030, 40104), (2088, 38990), (2228, 36540), (2320, 35091), (2436, 33420), (2520, 32306), (2610, 31192), (2785, 29232), (3045, 26736), (3248, 25065), (3342, 24360), (3480, 23394), (3654, 22280), (3899, 20880), (4060, 20052), (4176, 19495), (4456, 18270), (4872, 16710), (5013, 16240), (5040, 16153), (5220, 15596), (5570, 14616), (6090, 13368), (6684, 12180), (6960, 11697), (7308, 11140), (7798, 10440), (8120, 10026), (8355, 9744), (8912, 9135)]