8435540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2141}}^1$

素因数の和:2347

約数の個数: 24

約数和(自身を含む): 17812872

約数和(自身を除く): 9377332

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 2141, 3940, 4282, 8564, 10705, 21410, 42820, 421777, 843554, 1687108, 2108885, 4217770, 8435540]

約数ペア:

[(1, 8435540), (2, 4217770), (4, 2108885), (5, 1687108), (10, 843554), (20, 421777), (197, 42820), (394, 21410), (788, 10705), (985, 8564), (1970, 4282), (2141, 3940)]