169257680

素因数分解:

$2^4\times 5^1\times {\mathrm{2115721}}^1$

素因数の和:2115734

約数の個数: 20

約数和(自身を含む): 393524292

約数和(自身を除く): 224266612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2115721, 4231442, 8462884, 10578605, 16925768, 21157210, 33851536, 42314420, 84628840, 169257680]

約数ペア:

[(1, 169257680), (2, 84628840), (4, 42314420), (5, 33851536), (8, 21157210), (10, 16925768), (16, 10578605), (20, 8462884), (40, 4231442), (80, 2115721)]