28405800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:432

約数の個数: 144

約数和(自身を含む): 97880640

約数和(自身を除く): 69474840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 43, 45, 50, 60, 72, 75, 86, 90, 100, 120, 129, 150, 172, 180, 200, 215, 225, 258, 300, 344, 360, 367, 387, 430, 450, 516, 600, 645, 734, 774, 860, 900, 1032, 1075, 1101, 1290, 1468, 1548, 1720, 1800, 1835, 1935, 2150, 2202, 2580, 2936, 3096, 3225, 3303, 3670, 3870, 4300, 4404, 5160, 5505, 6450, 6606, 7340, 7740, 8600, 8808, 9175, 9675, 11010, 12900, 13212, 14680, 15480, 15781, 16515, 18350, 19350, 22020, 25800, 26424, 27525, 31562, 33030, 36700, 38700, 44040, 47343, 55050, 63124, 66060, 73400, 77400, 78905, 82575, 94686, 110100, 126248, 132120, 142029, 157810, 165150, 189372, 220200, 236715, 284058, 315620, 330300, 378744, 394525, 473430, 568116, 631240, 660600, 710145, 789050, 946860, 1136232, 1183575, 1420290, 1578100, 1893720, 2367150, 2840580, 3156200, 3550725, 4734300, 5681160, 7101450, 9468600, 14202900, 28405800]

約数ペア:

[(1, 28405800), (2, 14202900), (3, 9468600), (4, 7101450), (5, 5681160), (6, 4734300), (8, 3550725), (9, 3156200), (10, 2840580), (12, 2367150), (15, 1893720), (18, 1578100), (20, 1420290), (24, 1183575), (25, 1136232), (30, 946860), (36, 789050), (40, 710145), (43, 660600), (45, 631240), (50, 568116), (60, 473430), (72, 394525), (75, 378744), (86, 330300), (90, 315620), (100, 284058), (120, 236715), (129, 220200), (150, 189372), (172, 165150), (180, 157810), (200, 142029), (215, 132120), (225, 126248), (258, 110100), (300, 94686), (344, 82575), (360, 78905), (367, 77400), (387, 73400), (430, 66060), (450, 63124), (516, 55050), (600, 47343), (645, 44040), (734, 38700), (774, 36700), (860, 33030), (900, 31562), (1032, 27525), (1075, 26424), (1101, 25800), (1290, 22020), (1468, 19350), (1548, 18350), (1720, 16515), (1800, 15781), (1835, 15480), (1935, 14680), (2150, 13212), (2202, 12900), (2580, 11010), (2936, 9675), (3096, 9175), (3225, 8808), (3303, 8600), (3670, 7740), (3870, 7340), (4300, 6606), (4404, 6450), (5160, 5505)]