20379838500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{646979}}^1$

素因数の和:647011

約数の個数: 144

約数和(自身を含む): 73476224640

約数和(自身を除く): 53096386140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 1050, 1125, 1260, 1500, 1575, 1750, 2100, 2250, 2625, 3150, 3500, 4500, 5250, 6300, 7875, 10500, 15750, 31500, 646979, 1293958, 1940937, 2587916, 3234895, 3881874, 4528853, 5822811, 6469790, 7763748, 9057706, 9704685, 11645622, 12939580, 13586559, 16174475, 18115412, 19409370, 22644265, 23291244, 27173118, 29114055, 32348950, 38818740, 40759677, 45288530, 48523425, 54346236, 58228110, 64697900, 67932795, 80872375, 81519354, 90577060, 97046850, 113221325, 116456220, 135865590, 145570275, 161744750, 163038708, 194093700, 203798385, 226442650, 242617125, 271731180, 291140550, 323489500, 339663975, 407596770, 452885300, 485234250, 566106625, 582281100, 679327950, 727851375, 815193540, 970468500, 1018991925, 1132213250, 1358655900, 1455702750, 1698319875, 2037983850, 2264426500, 2911405500, 3396639750, 4075967700, 5094959625, 6793279500, 10189919250, 20379838500]

約数ペア:

[(1, 20379838500), (2, 10189919250), (3, 6793279500), (4, 5094959625), (5, 4075967700), (6, 3396639750), (7, 2911405500), (9, 2264426500), (10, 2037983850), (12, 1698319875), (14, 1455702750), (15, 1358655900), (18, 1132213250), (20, 1018991925), (21, 970468500), (25, 815193540), (28, 727851375), (30, 679327950), (35, 582281100), (36, 566106625), (42, 485234250), (45, 452885300), (50, 407596770), (60, 339663975), (63, 323489500), (70, 291140550), (75, 271731180), (84, 242617125), (90, 226442650), (100, 203798385), (105, 194093700), (125, 163038708), (126, 161744750), (140, 145570275), (150, 135865590), (175, 116456220), (180, 113221325), (210, 97046850), (225, 90577060), (250, 81519354), (252, 80872375), (300, 67932795), (315, 64697900), (350, 58228110), (375, 54346236), (420, 48523425), (450, 45288530), (500, 40759677), (525, 38818740), (630, 32348950), (700, 29114055), (750, 27173118), (875, 23291244), (900, 22644265), (1050, 19409370), (1125, 18115412), (1260, 16174475), (1500, 13586559), (1575, 12939580), (1750, 11645622), (2100, 9704685), (2250, 9057706), (2625, 7763748), (3150, 6469790), (3500, 5822811), (4500, 4528853), (5250, 3881874), (6300, 3234895), (7875, 2587916), (10500, 1940937), (15750, 1293958), (31500, 646979)]