20836080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:735

約数の個数: 120

約数和(自身を含む): 71708208

約数和(自身を除く): 50872128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 673, 688, 720, 774, 860, 1032, 1290, 1346, 1548, 1720, 1935, 2019, 2064, 2580, 2692, 3096, 3365, 3440, 3870, 4038, 5160, 5384, 6057, 6192, 6730, 7740, 8076, 10095, 10320, 10768, 12114, 13460, 15480, 16152, 20190, 24228, 26920, 28939, 30285, 30960, 32304, 40380, 48456, 53840, 57878, 60570, 80760, 86817, 96912, 115756, 121140, 144695, 161520, 173634, 231512, 242280, 260451, 289390, 347268, 434085, 463024, 484560, 520902, 578780, 694536, 868170, 1041804, 1157560, 1302255, 1389072, 1736340, 2083608, 2315120, 2604510, 3472680, 4167216, 5209020, 6945360, 10418040, 20836080]

約数ペア:

[(1, 20836080), (2, 10418040), (3, 6945360), (4, 5209020), (5, 4167216), (6, 3472680), (8, 2604510), (9, 2315120), (10, 2083608), (12, 1736340), (15, 1389072), (16, 1302255), (18, 1157560), (20, 1041804), (24, 868170), (30, 694536), (36, 578780), (40, 520902), (43, 484560), (45, 463024), (48, 434085), (60, 347268), (72, 289390), (80, 260451), (86, 242280), (90, 231512), (120, 173634), (129, 161520), (144, 144695), (172, 121140), (180, 115756), (215, 96912), (240, 86817), (258, 80760), (344, 60570), (360, 57878), (387, 53840), (430, 48456), (516, 40380), (645, 32304), (673, 30960), (688, 30285), (720, 28939), (774, 26920), (860, 24228), (1032, 20190), (1290, 16152), (1346, 15480), (1548, 13460), (1720, 12114), (1935, 10768), (2019, 10320), (2064, 10095), (2580, 8076), (2692, 7740), (3096, 6730), (3365, 6192), (3440, 6057), (3870, 5384), (4038, 5160)]