16417220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20021}}^1$

素因数の和:20071

約数の個数: 24

約数和(自身を含む): 35318808

約数和(自身を除く): 18901588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20021, 40042, 80084, 100105, 200210, 400420, 820861, 1641722, 3283444, 4104305, 8208610, 16417220]

約数ペア:

[(1, 16417220), (2, 8208610), (4, 4104305), (5, 3283444), (10, 1641722), (20, 820861), (41, 400420), (82, 200210), (164, 100105), (205, 80084), (410, 40042), (820, 20021)]