169901960

素因数分解:

$2^3\times 5^1\times {\mathrm{4247549}}^1$

素因数の和:4247560

約数の個数: 16

約数和(自身を含む): 382279500

約数和(自身を除く): 212377540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4247549, 8495098, 16990196, 21237745, 33980392, 42475490, 84950980, 169901960]

約数ペア:

[(1, 169901960), (2, 84950980), (4, 42475490), (5, 33980392), (8, 21237745), (10, 16990196), (20, 8495098), (40, 4247549)]