78846410

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{20269}}^1$

素因数の和:20665

約数の個数: 16

約数和(自身を含む): 142295400

約数和(自身を除く): 63448990

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 20269, 40538, 101345, 202690, 7884641, 15769282, 39423205, 78846410]

約数ペア:

[(1, 78846410), (2, 39423205), (5, 15769282), (10, 7884641), (389, 202690), (778, 101345), (1945, 40538), (3890, 20269)]