205452280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10859}}^1$

素因数の和:10924

約数の個数: 64

約数和(自身を含む): 516067200

約数和(自身を除く): 310614920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 9460, 10859, 18920, 21718, 43436, 54295, 86872, 108590, 119449, 217180, 238898, 434360, 466937, 477796, 597245, 933874, 955592, 1194490, 1867748, 2334685, 2388980, 3735496, 4669370, 4777960, 5136307, 9338740, 10272614, 18677480, 20545228, 25681535, 41090456, 51363070, 102726140, 205452280]

約数ペア:

[(1, 205452280), (2, 102726140), (4, 51363070), (5, 41090456), (8, 25681535), (10, 20545228), (11, 18677480), (20, 10272614), (22, 9338740), (40, 5136307), (43, 4777960), (44, 4669370), (55, 3735496), (86, 2388980), (88, 2334685), (110, 1867748), (172, 1194490), (215, 955592), (220, 933874), (344, 597245), (430, 477796), (440, 466937), (473, 434360), (860, 238898), (946, 217180), (1720, 119449), (1892, 108590), (2365, 86872), (3784, 54295), (4730, 43436), (9460, 21718), (10859, 18920)]