212156680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{10891}}^1$

素因数の和:11389

約数の個数: 32

約数和(自身を含む): 478376640

約数和(自身を除く): 266219960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 10891, 19480, 21782, 43564, 54455, 87128, 108910, 217820, 435640, 5303917, 10607834, 21215668, 26519585, 42431336, 53039170, 106078340, 212156680]

約数ペア:

[(1, 212156680), (2, 106078340), (4, 53039170), (5, 42431336), (8, 26519585), (10, 21215668), (20, 10607834), (40, 5303917), (487, 435640), (974, 217820), (1948, 108910), (2435, 87128), (3896, 54455), (4870, 43564), (9740, 21782), (10891, 19480)]