87989020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{628493}}^1$

素因数の和:628509

約数の個数: 24

約数和(自身を含む): 211173984

約数和(自身を除く): 123184964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 628493, 1256986, 2513972, 3142465, 4399451, 6284930, 8798902, 12569860, 17597804, 21997255, 43994510, 87989020]

約数ペア:

[(1, 87989020), (2, 43994510), (4, 21997255), (5, 17597804), (7, 12569860), (10, 8798902), (14, 6284930), (20, 4399451), (28, 3142465), (35, 2513972), (70, 1256986), (140, 628493)]