18019540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11701}}^1$

素因数の和:11728

約数の個数: 48

約数和(自身を含む): 47182464

約数和(自身を除く): 29162924

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11701, 23402, 46804, 58505, 81907, 117010, 128711, 163814, 234020, 257422, 327628, 409535, 514844, 643555, 819070, 900977, 1287110, 1638140, 1801954, 2574220, 3603908, 4504885, 9009770, 18019540]

約数ペア:

[(1, 18019540), (2, 9009770), (4, 4504885), (5, 3603908), (7, 2574220), (10, 1801954), (11, 1638140), (14, 1287110), (20, 900977), (22, 819070), (28, 643555), (35, 514844), (44, 409535), (55, 327628), (70, 257422), (77, 234020), (110, 163814), (140, 128711), (154, 117010), (220, 81907), (308, 58505), (385, 46804), (770, 23402), (1540, 11701)]