78817990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{192239}}^1$

素因数の和:192287

約数の個数: 16

約数和(自身を含む): 145333440

約数和(自身を除く): 66515450

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 192239, 384478, 961195, 1922390, 7881799, 15763598, 39408995, 78817990]

約数ペア:

[(1, 78817990), (2, 39408995), (5, 15763598), (10, 7881799), (41, 1922390), (82, 961195), (205, 384478), (410, 192239)]