19956640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 192

約数和(自身を含む): 58786560

約数和(自身を除く): 38829920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 23, 29, 32, 34, 40, 44, 46, 55, 58, 68, 80, 85, 88, 92, 110, 115, 116, 136, 145, 160, 170, 176, 184, 187, 220, 230, 232, 253, 272, 290, 319, 340, 352, 368, 374, 391, 440, 460, 464, 493, 506, 544, 580, 638, 667, 680, 736, 748, 782, 880, 920, 928, 935, 986, 1012, 1160, 1265, 1276, 1334, 1360, 1496, 1564, 1595, 1760, 1840, 1870, 1955, 1972, 2024, 2320, 2465, 2530, 2552, 2668, 2720, 2992, 3128, 3190, 3335, 3680, 3740, 3910, 3944, 4048, 4301, 4640, 4930, 5060, 5104, 5336, 5423, 5984, 6256, 6380, 6670, 7337, 7480, 7820, 7888, 8096, 8602, 9860, 10120, 10208, 10672, 10846, 11339, 12512, 12760, 13340, 14674, 14960, 15640, 15776, 17204, 19720, 20240, 21344, 21505, 21692, 22678, 25520, 26680, 27115, 29348, 29920, 31280, 34408, 36685, 39440, 40480, 43010, 43384, 45356, 51040, 53360, 54230, 56695, 58696, 62560, 68816, 73370, 78880, 86020, 86768, 90712, 106720, 108460, 113390, 117392, 124729, 137632, 146740, 172040, 173536, 181424, 216920, 226780, 234784, 249458, 293480, 344080, 362848, 433840, 453560, 498916, 586960, 623645, 688160, 867680, 907120, 997832, 1173920, 1247290, 1814240, 1995664, 2494580, 3991328, 4989160, 9978320, 19956640]

約数ペア:

[(1, 19956640), (2, 9978320), (4, 4989160), (5, 3991328), (8, 2494580), (10, 1995664), (11, 1814240), (16, 1247290), (17, 1173920), (20, 997832), (22, 907120), (23, 867680), (29, 688160), (32, 623645), (34, 586960), (40, 498916), (44, 453560), (46, 433840), (55, 362848), (58, 344080), (68, 293480), (80, 249458), (85, 234784), (88, 226780), (92, 216920), (110, 181424), (115, 173536), (116, 172040), (136, 146740), (145, 137632), (160, 124729), (170, 117392), (176, 113390), (184, 108460), (187, 106720), (220, 90712), (230, 86768), (232, 86020), (253, 78880), (272, 73370), (290, 68816), (319, 62560), (340, 58696), (352, 56695), (368, 54230), (374, 53360), (391, 51040), (440, 45356), (460, 43384), (464, 43010), (493, 40480), (506, 39440), (544, 36685), (580, 34408), (638, 31280), (667, 29920), (680, 29348), (736, 27115), (748, 26680), (782, 25520), (880, 22678), (920, 21692), (928, 21505), (935, 21344), (986, 20240), (1012, 19720), (1160, 17204), (1265, 15776), (1276, 15640), (1334, 14960), (1360, 14674), (1496, 13340), (1564, 12760), (1595, 12512), (1760, 11339), (1840, 10846), (1870, 10672), (1955, 10208), (1972, 10120), (2024, 9860), (2320, 8602), (2465, 8096), (2530, 7888), (2552, 7820), (2668, 7480), (2720, 7337), (2992, 6670), (3128, 6380), (3190, 6256), (3335, 5984), (3680, 5423), (3740, 5336), (3910, 5104), (3944, 5060), (4048, 4930), (4301, 4640)]