81374920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 227525760

約数和(自身を除く): 146150840

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 23, 34, 40, 43, 44, 46, 55, 68, 85, 86, 88, 92, 110, 115, 121, 136, 170, 172, 184, 187, 215, 220, 230, 242, 253, 340, 344, 374, 391, 430, 440, 460, 473, 484, 506, 605, 680, 731, 748, 782, 860, 920, 935, 946, 968, 989, 1012, 1210, 1265, 1462, 1496, 1564, 1720, 1870, 1892, 1955, 1978, 2024, 2057, 2365, 2420, 2530, 2783, 2924, 3128, 3655, 3740, 3784, 3910, 3956, 4114, 4301, 4730, 4840, 4945, 5060, 5203, 5566, 5848, 7310, 7480, 7820, 7912, 8041, 8228, 8602, 9460, 9890, 10120, 10285, 10406, 10879, 11132, 13915, 14620, 15640, 16082, 16456, 16813, 17204, 18920, 19780, 20570, 20812, 21505, 21758, 22264, 26015, 27830, 29240, 32164, 33626, 34408, 39560, 40205, 41140, 41624, 43010, 43516, 47311, 52030, 54395, 55660, 64328, 67252, 80410, 82280, 84065, 86020, 87032, 88451, 94622, 104060, 108790, 111320, 119669, 134504, 160820, 168130, 172040, 176902, 184943, 189244, 208120, 217580, 236555, 239338, 321640, 336260, 353804, 369886, 378488, 435160, 442255, 473110, 478676, 598345, 672520, 707608, 739772, 884510, 924715, 946220, 957352, 1196690, 1479544, 1769020, 1849430, 1892440, 2034373, 2393380, 3538040, 3698860, 4068746, 4786760, 7397720, 8137492, 10171865, 16274984, 20343730, 40687460, 81374920]

約数ペア:

[(1, 81374920), (2, 40687460), (4, 20343730), (5, 16274984), (8, 10171865), (10, 8137492), (11, 7397720), (17, 4786760), (20, 4068746), (22, 3698860), (23, 3538040), (34, 2393380), (40, 2034373), (43, 1892440), (44, 1849430), (46, 1769020), (55, 1479544), (68, 1196690), (85, 957352), (86, 946220), (88, 924715), (92, 884510), (110, 739772), (115, 707608), (121, 672520), (136, 598345), (170, 478676), (172, 473110), (184, 442255), (187, 435160), (215, 378488), (220, 369886), (230, 353804), (242, 336260), (253, 321640), (340, 239338), (344, 236555), (374, 217580), (391, 208120), (430, 189244), (440, 184943), (460, 176902), (473, 172040), (484, 168130), (506, 160820), (605, 134504), (680, 119669), (731, 111320), (748, 108790), (782, 104060), (860, 94622), (920, 88451), (935, 87032), (946, 86020), (968, 84065), (989, 82280), (1012, 80410), (1210, 67252), (1265, 64328), (1462, 55660), (1496, 54395), (1564, 52030), (1720, 47311), (1870, 43516), (1892, 43010), (1955, 41624), (1978, 41140), (2024, 40205), (2057, 39560), (2365, 34408), (2420, 33626), (2530, 32164), (2783, 29240), (2924, 27830), (3128, 26015), (3655, 22264), (3740, 21758), (3784, 21505), (3910, 20812), (3956, 20570), (4114, 19780), (4301, 18920), (4730, 17204), (4840, 16813), (4945, 16456), (5060, 16082), (5203, 15640), (5566, 14620), (5848, 13915), (7310, 11132), (7480, 10879), (7820, 10406), (7912, 10285), (8041, 10120), (8228, 9890), (8602, 9460)]