168326680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{8641}}^1$

素因数の和:9139

約数の個数: 32

約数和(自身を含む): 379556640

約数和(自身を除く): 211229960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 8641, 9740, 17282, 19480, 34564, 43205, 69128, 86410, 172820, 345640, 4208167, 8416334, 16832668, 21040835, 33665336, 42081670, 84163340, 168326680]

約数ペア:

[(1, 168326680), (2, 84163340), (4, 42081670), (5, 33665336), (8, 21040835), (10, 16832668), (20, 8416334), (40, 4208167), (487, 345640), (974, 172820), (1948, 86410), (2435, 69128), (3896, 43205), (4870, 34564), (8641, 19480), (9740, 17282)]