420105260

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1\times {\mathrm{433}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 893172000

約数和(自身を除く): 473066740

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 349, 433, 556, 695, 698, 866, 1390, 1396, 1732, 1745, 2165, 2780, 3490, 4330, 6980, 8660, 48511, 60187, 97022, 120374, 151117, 194044, 240748, 242555, 300935, 302234, 485110, 601870, 604468, 755585, 970220, 1203740, 1511170, 3022340, 21005263, 42010526, 84021052, 105026315, 210052630, 420105260]

約数ペア:

[(1, 420105260), (2, 210052630), (4, 105026315), (5, 84021052), (10, 42010526), (20, 21005263), (139, 3022340), (278, 1511170), (349, 1203740), (433, 970220), (556, 755585), (695, 604468), (698, 601870), (866, 485110), (1390, 302234), (1396, 300935), (1732, 242555), (1745, 240748), (2165, 194044), (2780, 151117), (3490, 120374), (4330, 97022), (6980, 60187), (8660, 48511)]