81720402

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{439357}}^1$

素因数の和:439393

約数の個数: 16

約数和(自身を含む): 168713472

約数和(自身を除く): 86993070

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 439357, 878714, 1318071, 2636142, 13620067, 27240134, 40860201, 81720402]

約数ペア:

[(1, 81720402), (2, 40860201), (3, 27240134), (6, 13620067), (31, 2636142), (62, 1318071), (93, 878714), (186, 439357)]