20278314980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1197067}}^1$

素因数の和:1197105

約数の個数: 72

約数和(自身を含む): 53494574784

約数和(自身を除く): 33216259804

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 16940, 1197067, 2394134, 4788268, 5985335, 8379469, 11970670, 13167737, 16758938, 23941340, 26335474, 33517876, 41897345, 52670948, 65838685, 83794690, 92174159, 131677370, 144845107, 167589380, 184348318, 263354740, 289690214, 368696636, 460870795, 579380428, 724225535, 921741590, 1013915749, 1448451070, 1843483180, 2027831498, 2896902140, 4055662996, 5069578745, 10139157490, 20278314980]

約数ペア:

[(1, 20278314980), (2, 10139157490), (4, 5069578745), (5, 4055662996), (7, 2896902140), (10, 2027831498), (11, 1843483180), (14, 1448451070), (20, 1013915749), (22, 921741590), (28, 724225535), (35, 579380428), (44, 460870795), (55, 368696636), (70, 289690214), (77, 263354740), (110, 184348318), (121, 167589380), (140, 144845107), (154, 131677370), (220, 92174159), (242, 83794690), (308, 65838685), (385, 52670948), (484, 41897345), (605, 33517876), (770, 26335474), (847, 23941340), (1210, 16758938), (1540, 13167737), (1694, 11970670), (2420, 8379469), (3388, 5985335), (4235, 4788268), (8470, 2394134), (16940, 1197067)]