640554048

素因数分解:

$2^6\times 3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:342

約数の個数: 224

約数和(自身を含む): 2001438720

約数和(自身を除く): 1360884672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 48, 54, 64, 69, 71, 72, 92, 96, 108, 138, 142, 144, 184, 192, 207, 213, 216, 227, 276, 284, 288, 368, 414, 426, 432, 454, 552, 568, 576, 621, 639, 681, 736, 828, 852, 864, 908, 1104, 1136, 1242, 1278, 1362, 1472, 1633, 1656, 1704, 1728, 1816, 1917, 2043, 2208, 2272, 2484, 2556, 2724, 3266, 3312, 3408, 3632, 3834, 4086, 4416, 4544, 4899, 4968, 5112, 5221, 5448, 6129, 6532, 6624, 6816, 7264, 7668, 8172, 9798, 9936, 10224, 10442, 10896, 12258, 13064, 13248, 13632, 14528, 14697, 15336, 15663, 16117, 16344, 19596, 19872, 20448, 20884, 21792, 24516, 26128, 29394, 30672, 31326, 32234, 32688, 39192, 39744, 40896, 41768, 43584, 44091, 46989, 48351, 49032, 52256, 58788, 61344, 62652, 64468, 65376, 78384, 83536, 88182, 93978, 96702, 98064, 104512, 117576, 122688, 125304, 128936, 130752, 140967, 145053, 156768, 167072, 176364, 187956, 193404, 196128, 235152, 250608, 257872, 281934, 290106, 313536, 334144, 352728, 370691, 375912, 386808, 392256, 435159, 470304, 501216, 515744, 563868, 580212, 705456, 741382, 751824, 773616, 870318, 940608, 1002432, 1031488, 1112073, 1127736, 1160424, 1410912, 1482764, 1503648, 1547232, 1740636, 2224146, 2255472, 2320848, 2821824, 2965528, 3007296, 3094464, 3336219, 3481272, 4448292, 4510944, 4641696, 5931056, 6672438, 6962544, 8896584, 9021888, 9283392, 10008657, 11862112, 13344876, 13925088, 17793168, 20017314, 23724224, 26689752, 27850176, 35586336, 40034628, 53379504, 71172672, 80069256, 106759008, 160138512, 213518016, 320277024, 640554048]

約数ペア:

[(1, 640554048), (2, 320277024), (3, 213518016), (4, 160138512), (6, 106759008), (8, 80069256), (9, 71172672), (12, 53379504), (16, 40034628), (18, 35586336), (23, 27850176), (24, 26689752), (27, 23724224), (32, 20017314), (36, 17793168), (46, 13925088), (48, 13344876), (54, 11862112), (64, 10008657), (69, 9283392), (71, 9021888), (72, 8896584), (92, 6962544), (96, 6672438), (108, 5931056), (138, 4641696), (142, 4510944), (144, 4448292), (184, 3481272), (192, 3336219), (207, 3094464), (213, 3007296), (216, 2965528), (227, 2821824), (276, 2320848), (284, 2255472), (288, 2224146), (368, 1740636), (414, 1547232), (426, 1503648), (432, 1482764), (454, 1410912), (552, 1160424), (568, 1127736), (576, 1112073), (621, 1031488), (639, 1002432), (681, 940608), (736, 870318), (828, 773616), (852, 751824), (864, 741382), (908, 705456), (1104, 580212), (1136, 563868), (1242, 515744), (1278, 501216), (1362, 470304), (1472, 435159), (1633, 392256), (1656, 386808), (1704, 375912), (1728, 370691), (1816, 352728), (1917, 334144), (2043, 313536), (2208, 290106), (2272, 281934), (2484, 257872), (2556, 250608), (2724, 235152), (3266, 196128), (3312, 193404), (3408, 187956), (3632, 176364), (3834, 167072), (4086, 156768), (4416, 145053), (4544, 140967), (4899, 130752), (4968, 128936), (5112, 125304), (5221, 122688), (5448, 117576), (6129, 104512), (6532, 98064), (6624, 96702), (6816, 93978), (7264, 88182), (7668, 83536), (8172, 78384), (9798, 65376), (9936, 64468), (10224, 62652), (10442, 61344), (10896, 58788), (12258, 52256), (13064, 49032), (13248, 48351), (13632, 46989), (14528, 44091), (14697, 43584), (15336, 41768), (15663, 40896), (16117, 39744), (16344, 39192), (19596, 32688), (19872, 32234), (20448, 31326), (20884, 30672), (21792, 29394), (24516, 26128)]