81510800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:745

約数の個数: 120

約数和(自身を含む): 229348416

約数和(自身を除く): 147837616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 43, 50, 56, 70, 80, 86, 100, 112, 140, 172, 175, 200, 215, 280, 301, 344, 350, 400, 430, 560, 602, 677, 688, 700, 860, 1075, 1204, 1354, 1400, 1505, 1720, 2150, 2408, 2708, 2800, 3010, 3385, 3440, 4300, 4739, 4816, 5416, 6020, 6770, 7525, 8600, 9478, 10832, 12040, 13540, 15050, 16925, 17200, 18956, 23695, 24080, 27080, 29111, 30100, 33850, 37912, 47390, 54160, 58222, 60200, 67700, 75824, 94780, 116444, 118475, 120400, 135400, 145555, 189560, 203777, 232888, 236950, 270800, 291110, 379120, 407554, 465776, 473900, 582220, 727775, 815108, 947800, 1018885, 1164440, 1455550, 1630216, 1895600, 2037770, 2328880, 2911100, 3260432, 4075540, 5094425, 5822200, 8151080, 10188850, 11644400, 16302160, 20377700, 40755400, 81510800]

約数ペア:

[(1, 81510800), (2, 40755400), (4, 20377700), (5, 16302160), (7, 11644400), (8, 10188850), (10, 8151080), (14, 5822200), (16, 5094425), (20, 4075540), (25, 3260432), (28, 2911100), (35, 2328880), (40, 2037770), (43, 1895600), (50, 1630216), (56, 1455550), (70, 1164440), (80, 1018885), (86, 947800), (100, 815108), (112, 727775), (140, 582220), (172, 473900), (175, 465776), (200, 407554), (215, 379120), (280, 291110), (301, 270800), (344, 236950), (350, 232888), (400, 203777), (430, 189560), (560, 145555), (602, 135400), (677, 120400), (688, 118475), (700, 116444), (860, 94780), (1075, 75824), (1204, 67700), (1354, 60200), (1400, 58222), (1505, 54160), (1720, 47390), (2150, 37912), (2408, 33850), (2708, 30100), (2800, 29111), (3010, 27080), (3385, 24080), (3440, 23695), (4300, 18956), (4739, 17200), (4816, 16925), (5416, 15050), (6020, 13540), (6770, 12040), (7525, 10832), (8600, 9478)]