721815268

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{1063}}^1\times {\mathrm{3203}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 1288623168

約数和(自身を除く): 566807900

約数列:

[1, 2, 4, 53, 106, 212, 1063, 2126, 3203, 4252, 6406, 12812, 56339, 112678, 169759, 225356, 339518, 679036, 3404789, 6809578, 13619156, 180453817, 360907634, 721815268]

約数ペア:

[(1, 721815268), (2, 360907634), (4, 180453817), (53, 13619156), (106, 6809578), (212, 3404789), (1063, 679036), (2126, 339518), (3203, 225356), (4252, 169759), (6406, 112678), (12812, 56339)]