666921288

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{821}}^1$

素因数の和:1039

約数の個数: 128

約数和(自身を含む): 1938867840

約数和(自身を除く): 1271946552

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 68, 88, 102, 132, 136, 181, 187, 204, 264, 362, 374, 408, 543, 561, 724, 748, 821, 1086, 1122, 1448, 1496, 1642, 1991, 2172, 2244, 2463, 3077, 3284, 3982, 4344, 4488, 4926, 5973, 6154, 6568, 7964, 9031, 9231, 9852, 11946, 12308, 13957, 15928, 18062, 18462, 19704, 23892, 24616, 27093, 27914, 33847, 36124, 36924, 41871, 47784, 54186, 55828, 67694, 72248, 73848, 83742, 101541, 108372, 111656, 135388, 148601, 153527, 167484, 203082, 216744, 270776, 297202, 307054, 334968, 406164, 445803, 460581, 594404, 614108, 812328, 891606, 921162, 1188808, 1228216, 1634611, 1783212, 1842324, 2526217, 3269222, 3566424, 3684648, 4903833, 5052434, 6538444, 7578651, 9807666, 10104868, 13076888, 15157302, 19615332, 20209736, 27788387, 30314604, 39230664, 55576774, 60629208, 83365161, 111153548, 166730322, 222307096, 333460644, 666921288]

約数ペア:

[(1, 666921288), (2, 333460644), (3, 222307096), (4, 166730322), (6, 111153548), (8, 83365161), (11, 60629208), (12, 55576774), (17, 39230664), (22, 30314604), (24, 27788387), (33, 20209736), (34, 19615332), (44, 15157302), (51, 13076888), (66, 10104868), (68, 9807666), (88, 7578651), (102, 6538444), (132, 5052434), (136, 4903833), (181, 3684648), (187, 3566424), (204, 3269222), (264, 2526217), (362, 1842324), (374, 1783212), (408, 1634611), (543, 1228216), (561, 1188808), (724, 921162), (748, 891606), (821, 812328), (1086, 614108), (1122, 594404), (1448, 460581), (1496, 445803), (1642, 406164), (1991, 334968), (2172, 307054), (2244, 297202), (2463, 270776), (3077, 216744), (3284, 203082), (3982, 167484), (4344, 153527), (4488, 148601), (4926, 135388), (5973, 111656), (6154, 108372), (6568, 101541), (7964, 83742), (9031, 73848), (9231, 72248), (9852, 67694), (11946, 55828), (12308, 54186), (13957, 47784), (15928, 41871), (18062, 36924), (18462, 36124), (19704, 33847), (23892, 27914), (24616, 27093)]