16520840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{8429}}^1$

素因数の和:8454

約数の個数: 48

約数和(自身を含む): 43245900

約数和(自身を除く): 26725060

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 8429, 16858, 33716, 42145, 59003, 67432, 84290, 118006, 168580, 236012, 295015, 337160, 413021, 472024, 590030, 826042, 1180060, 1652084, 2065105, 2360120, 3304168, 4130210, 8260420, 16520840]

約数ペア:

[(1, 16520840), (2, 8260420), (4, 4130210), (5, 3304168), (7, 2360120), (8, 2065105), (10, 1652084), (14, 1180060), (20, 826042), (28, 590030), (35, 472024), (40, 413021), (49, 337160), (56, 295015), (70, 236012), (98, 168580), (140, 118006), (196, 84290), (245, 67432), (280, 59003), (392, 42145), (490, 33716), (980, 16858), (1960, 8429)]