720966868

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{1296703}}^1$

素因数の和:1296846

約数の個数: 12

約数和(自身を含む): 1270769920

約数和(自身を除く): 549803052

約数列:

[1, 2, 4, 139, 278, 556, 1296703, 2593406, 5186812, 180241717, 360483434, 720966868]

約数ペア:

[(1, 720966868), (2, 360483434), (4, 180241717), (139, 5186812), (278, 2593406), (556, 1296703)]