80901920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1069}}^1$

素因数の和:1138

約数の個数: 96

約数和(自身を含む): 213554880

約数和(自身を除く): 132652960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 80, 86, 88, 110, 160, 172, 176, 215, 220, 344, 352, 430, 440, 473, 688, 860, 880, 946, 1069, 1376, 1720, 1760, 1892, 2138, 2365, 3440, 3784, 4276, 4730, 5345, 6880, 7568, 8552, 9460, 10690, 11759, 15136, 17104, 18920, 21380, 23518, 34208, 37840, 42760, 45967, 47036, 58795, 75680, 85520, 91934, 94072, 117590, 171040, 183868, 188144, 229835, 235180, 367736, 376288, 459670, 470360, 505637, 735472, 919340, 940720, 1011274, 1470944, 1838680, 1881440, 2022548, 2528185, 3677360, 4045096, 5056370, 7354720, 8090192, 10112740, 16180384, 20225480, 40450960, 80901920]

約数ペア:

[(1, 80901920), (2, 40450960), (4, 20225480), (5, 16180384), (8, 10112740), (10, 8090192), (11, 7354720), (16, 5056370), (20, 4045096), (22, 3677360), (32, 2528185), (40, 2022548), (43, 1881440), (44, 1838680), (55, 1470944), (80, 1011274), (86, 940720), (88, 919340), (110, 735472), (160, 505637), (172, 470360), (176, 459670), (215, 376288), (220, 367736), (344, 235180), (352, 229835), (430, 188144), (440, 183868), (473, 171040), (688, 117590), (860, 94072), (880, 91934), (946, 85520), (1069, 75680), (1376, 58795), (1720, 47036), (1760, 45967), (1892, 42760), (2138, 37840), (2365, 34208), (3440, 23518), (3784, 21380), (4276, 18920), (4730, 17104), (5345, 15136), (6880, 11759), (7568, 10690), (8552, 9460)]