81022320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2617}}^1$

素因数の和:2679

約数の個数: 120

約数和(自身を含む): 278534256

約数和(自身を除く): 197511936

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, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 2617, 3096, 3440, 3870, 5160, 5234, 6192, 7740, 7851, 10320, 10468, 13085, 15480, 15702, 20936, 23553, 26170, 30960, 31404, 39255, 41872, 47106, 52340, 62808, 78510, 94212, 104680, 112531, 117765, 125616, 157020, 188424, 209360, 225062, 235530, 314040, 337593, 376848, 450124, 471060, 562655, 628080, 675186, 900248, 942120, 1012779, 1125310, 1350372, 1687965, 1800496, 1884240, 2025558, 2250620, 2700744, 3375930, 4051116, 4501240, 5063895, 5401488, 6751860, 8102232, 9002480, 10127790, 13503720, 16204464, 20255580, 27007440, 40511160, 81022320]

約数ペア:

[(1, 81022320), (2, 40511160), (3, 27007440), (4, 20255580), (5, 16204464), (6, 13503720), (8, 10127790), (9, 9002480), (10, 8102232), (12, 6751860), (15, 5401488), (16, 5063895), (18, 4501240), (20, 4051116), (24, 3375930), (30, 2700744), (36, 2250620), (40, 2025558), (43, 1884240), (45, 1800496), (48, 1687965), (60, 1350372), (72, 1125310), (80, 1012779), (86, 942120), (90, 900248), (120, 675186), (129, 628080), (144, 562655), (172, 471060), (180, 450124), (215, 376848), (240, 337593), (258, 314040), (344, 235530), (360, 225062), (387, 209360), (430, 188424), (516, 157020), (645, 125616), (688, 117765), (720, 112531), (774, 104680), (860, 94212), (1032, 78510), (1290, 62808), (1548, 52340), (1720, 47106), (1935, 41872), (2064, 39255), (2580, 31404), (2617, 30960), (3096, 26170), (3440, 23553), (3870, 20936), (5160, 15702), (5234, 15480), (6192, 13085), (7740, 10468), (7851, 10320)]