209700260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12379}}^1$

素因数の和:12417

約数の個数: 72

約数和(自身を含む): 553237440

約数和(自身を除く): 343537180

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, 12379, 16940, 24758, 49516, 61895, 86653, 123790, 136169, 173306, 247580, 272338, 346612, 433265, 544676, 680845, 866530, 953183, 1361690, 1497859, 1733060, 1906366, 2723380, 2995718, 3812732, 4765915, 5991436, 7489295, 9531830, 10485013, 14978590, 19063660, 20970026, 29957180, 41940052, 52425065, 104850130, 209700260]

約数ペア:

[(1, 209700260), (2, 104850130), (4, 52425065), (5, 41940052), (7, 29957180), (10, 20970026), (11, 19063660), (14, 14978590), (20, 10485013), (22, 9531830), (28, 7489295), (35, 5991436), (44, 4765915), (55, 3812732), (70, 2995718), (77, 2723380), (110, 1906366), (121, 1733060), (140, 1497859), (154, 1361690), (220, 953183), (242, 866530), (308, 680845), (385, 544676), (484, 433265), (605, 346612), (770, 272338), (847, 247580), (1210, 173306), (1540, 136169), (1694, 123790), (2420, 86653), (3388, 61895), (4235, 49516), (8470, 24758), (12379, 16940)]