19805276

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 35280000

約数和(自身を除く): 15474724

約数列:

[1, 2, 4, 139, 179, 199, 278, 358, 398, 556, 716, 796, 24881, 27661, 35621, 49762, 55322, 71242, 99524, 110644, 142484, 4951319, 9902638, 19805276]

約数ペア:

[(1, 19805276), (2, 9902638), (4, 4951319), (139, 142484), (179, 110644), (199, 99524), (278, 71242), (358, 55322), (398, 49762), (556, 35621), (716, 27661), (796, 24881)]