281617512

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:647

約数の個数: 128

約数和(自身を含む): 821145600

約数和(自身を除く): 539528088

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 68, 88, 102, 131, 132, 136, 187, 204, 262, 264, 374, 393, 408, 479, 524, 561, 748, 786, 958, 1048, 1122, 1437, 1441, 1496, 1572, 1916, 2227, 2244, 2874, 2882, 3144, 3832, 4323, 4454, 4488, 5269, 5748, 5764, 6681, 8143, 8646, 8908, 10538, 11496, 11528, 13362, 15807, 16286, 17292, 17816, 21076, 24429, 24497, 26724, 31614, 32572, 34584, 42152, 48858, 48994, 53448, 62749, 63228, 65144, 73491, 89573, 97716, 97988, 125498, 126456, 146982, 179146, 188247, 195432, 195976, 250996, 268719, 293964, 358292, 376494, 501992, 537438, 587928, 690239, 716584, 752988, 1066733, 1074876, 1380478, 1505976, 2070717, 2133466, 2149752, 2760956, 3200199, 4141434, 4266932, 5521912, 6400398, 8282868, 8533864, 11734063, 12800796, 16565736, 23468126, 25601592, 35202189, 46936252, 70404378, 93872504, 140808756, 281617512]

約数ペア:

[(1, 281617512), (2, 140808756), (3, 93872504), (4, 70404378), (6, 46936252), (8, 35202189), (11, 25601592), (12, 23468126), (17, 16565736), (22, 12800796), (24, 11734063), (33, 8533864), (34, 8282868), (44, 6400398), (51, 5521912), (66, 4266932), (68, 4141434), (88, 3200199), (102, 2760956), (131, 2149752), (132, 2133466), (136, 2070717), (187, 1505976), (204, 1380478), (262, 1074876), (264, 1066733), (374, 752988), (393, 716584), (408, 690239), (479, 587928), (524, 537438), (561, 501992), (748, 376494), (786, 358292), (958, 293964), (1048, 268719), (1122, 250996), (1437, 195976), (1441, 195432), (1496, 188247), (1572, 179146), (1916, 146982), (2227, 126456), (2244, 125498), (2874, 97988), (2882, 97716), (3144, 89573), (3832, 73491), (4323, 65144), (4454, 63228), (4488, 62749), (5269, 53448), (5748, 48994), (5764, 48858), (6681, 42152), (8143, 34584), (8646, 32572), (8908, 31614), (10538, 26724), (11496, 24497), (11528, 24429), (13362, 21076), (15807, 17816), (16286, 17292)]