28009440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:441

約数の個数: 144

約数和(自身を含む): 97651008

約数和(自身を除く): 69641568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 72, 80, 90, 96, 106, 120, 144, 159, 160, 180, 212, 240, 265, 288, 318, 360, 367, 424, 477, 480, 530, 636, 720, 734, 795, 848, 954, 1060, 1101, 1272, 1440, 1468, 1590, 1696, 1835, 1908, 2120, 2202, 2385, 2544, 2936, 3180, 3303, 3670, 3816, 4240, 4404, 4770, 5088, 5505, 5872, 6360, 6606, 7340, 7632, 8480, 8808, 9540, 11010, 11744, 12720, 13212, 14680, 15264, 16515, 17616, 19080, 19451, 22020, 25440, 26424, 29360, 33030, 35232, 38160, 38902, 44040, 52848, 58353, 58720, 66060, 76320, 77804, 88080, 97255, 105696, 116706, 132120, 155608, 175059, 176160, 194510, 233412, 264240, 291765, 311216, 350118, 389020, 466824, 528480, 583530, 622432, 700236, 778040, 875295, 933648, 1167060, 1400472, 1556080, 1750590, 1867296, 2334120, 2800944, 3112160, 3501180, 4668240, 5601888, 7002360, 9336480, 14004720, 28009440]

約数ペア:

[(1, 28009440), (2, 14004720), (3, 9336480), (4, 7002360), (5, 5601888), (6, 4668240), (8, 3501180), (9, 3112160), (10, 2800944), (12, 2334120), (15, 1867296), (16, 1750590), (18, 1556080), (20, 1400472), (24, 1167060), (30, 933648), (32, 875295), (36, 778040), (40, 700236), (45, 622432), (48, 583530), (53, 528480), (60, 466824), (72, 389020), (80, 350118), (90, 311216), (96, 291765), (106, 264240), (120, 233412), (144, 194510), (159, 176160), (160, 175059), (180, 155608), (212, 132120), (240, 116706), (265, 105696), (288, 97255), (318, 88080), (360, 77804), (367, 76320), (424, 66060), (477, 58720), (480, 58353), (530, 52848), (636, 44040), (720, 38902), (734, 38160), (795, 35232), (848, 33030), (954, 29360), (1060, 26424), (1101, 25440), (1272, 22020), (1440, 19451), (1468, 19080), (1590, 17616), (1696, 16515), (1835, 15264), (1908, 14680), (2120, 13212), (2202, 12720), (2385, 11744), (2544, 11010), (2936, 9540), (3180, 8808), (3303, 8480), (3670, 7632), (3816, 7340), (4240, 6606), (4404, 6360), (4770, 5872), (5088, 5505)]