81562972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{20249}}^1$

素因数の和:20325

約数の個数: 24

約数和(自身を含む): 153090000

約数和(自身を除く): 71527028

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 20249, 40498, 80996, 384731, 769462, 1073197, 1538924, 2146394, 4292788, 20390743, 40781486, 81562972]

約数ペア:

[(1, 81562972), (2, 40781486), (4, 20390743), (19, 4292788), (38, 2146394), (53, 1538924), (76, 1073197), (106, 769462), (212, 384731), (1007, 80996), (2014, 40498), (4028, 20249)]