20802170

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 38782800

約数和(自身を除く): 17980630

約数列:

[1, 2, 5, 10, 41, 82, 113, 205, 226, 410, 449, 565, 898, 1130, 2245, 4490, 4633, 9266, 18409, 23165, 36818, 46330, 50737, 92045, 101474, 184090, 253685, 507370, 2080217, 4160434, 10401085, 20802170]

約数ペア:

[(1, 20802170), (2, 10401085), (5, 4160434), (10, 2080217), (41, 507370), (82, 253685), (113, 184090), (205, 101474), (226, 92045), (410, 50737), (449, 46330), (565, 36818), (898, 23165), (1130, 18409), (2245, 9266), (4490, 4633)]