86779780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{105829}}^1$

素因数の和:105879

約数の個数: 24

約数和(自身を含む): 186684120

約数和(自身を除く): 99904340

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 105829, 211658, 423316, 529145, 1058290, 2116580, 4338989, 8677978, 17355956, 21694945, 43389890, 86779780]

約数ペア:

[(1, 86779780), (2, 43389890), (4, 21694945), (5, 17355956), (10, 8677978), (20, 4338989), (41, 2116580), (82, 1058290), (164, 529145), (205, 423316), (410, 211658), (820, 105829)]