181381040

素因数分解:

$2^4\times 5^1\times {\mathrm{2267263}}^1$

素因数の和:2267276

約数の個数: 20

約数和(自身を含む): 421711104

約数和(自身を除く): 240330064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2267263, 4534526, 9069052, 11336315, 18138104, 22672630, 36276208, 45345260, 90690520, 181381040]

約数ペア:

[(1, 181381040), (2, 90690520), (4, 45345260), (5, 36276208), (8, 22672630), (10, 18138104), (16, 11336315), (20, 9069052), (40, 4534526), (80, 2267263)]