8260420

素因数分解:

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

素因数の和:8452

約数の個数: 36

約数和(自身を含む): 20181420

約数和(自身を除く): 11921000

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8429, 16858, 33716, 42145, 59003, 84290, 118006, 168580, 236012, 295015, 413021, 590030, 826042, 1180060, 1652084, 2065105, 4130210, 8260420]

約数ペア:

[(1, 8260420), (2, 4130210), (4, 2065105), (5, 1652084), (7, 1180060), (10, 826042), (14, 590030), (20, 413021), (28, 295015), (35, 236012), (49, 168580), (70, 118006), (98, 84290), (140, 59003), (196, 42145), (245, 33716), (490, 16858), (980, 8429)]