78820000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{563}}^1$

素因数の和:600

約数の個数: 120

約数和(自身を含む): 222003936

約数和(自身を除く): 143183936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 350, 400, 500, 560, 563, 625, 700, 800, 875, 1000, 1120, 1126, 1250, 1400, 1750, 2000, 2252, 2500, 2800, 2815, 3500, 3941, 4000, 4375, 4504, 5000, 5600, 5630, 7000, 7882, 8750, 9008, 10000, 11260, 14000, 14075, 15764, 17500, 18016, 19705, 20000, 22520, 28000, 28150, 31528, 35000, 39410, 45040, 56300, 63056, 70000, 70375, 78820, 90080, 98525, 112600, 126112, 140000, 140750, 157640, 197050, 225200, 281500, 315280, 351875, 394100, 450400, 492625, 563000, 630560, 703750, 788200, 985250, 1126000, 1407500, 1576400, 1970500, 2252000, 2463125, 2815000, 3152800, 3941000, 4926250, 5630000, 7882000, 9852500, 11260000, 15764000, 19705000, 39410000, 78820000]

約数ペア:

[(1, 78820000), (2, 39410000), (4, 19705000), (5, 15764000), (7, 11260000), (8, 9852500), (10, 7882000), (14, 5630000), (16, 4926250), (20, 3941000), (25, 3152800), (28, 2815000), (32, 2463125), (35, 2252000), (40, 1970500), (50, 1576400), (56, 1407500), (70, 1126000), (80, 985250), (100, 788200), (112, 703750), (125, 630560), (140, 563000), (160, 492625), (175, 450400), (200, 394100), (224, 351875), (250, 315280), (280, 281500), (350, 225200), (400, 197050), (500, 157640), (560, 140750), (563, 140000), (625, 126112), (700, 112600), (800, 98525), (875, 90080), (1000, 78820), (1120, 70375), (1126, 70000), (1250, 63056), (1400, 56300), (1750, 45040), (2000, 39410), (2252, 35000), (2500, 31528), (2800, 28150), (2815, 28000), (3500, 22520), (3941, 20000), (4000, 19705), (4375, 18016), (4504, 17500), (5000, 15764), (5600, 14075), (5630, 14000), (7000, 11260), (7882, 10000), (8750, 9008)]