81156568

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{277}}^1\times {\mathrm{691}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 155824560

約数和(自身を除く): 74667992

約数列:

[1, 2, 4, 8, 53, 106, 212, 277, 424, 554, 691, 1108, 1382, 2216, 2764, 5528, 14681, 29362, 36623, 58724, 73246, 117448, 146492, 191407, 292984, 382814, 765628, 1531256, 10144571, 20289142, 40578284, 81156568]

約数ペア:

[(1, 81156568), (2, 40578284), (4, 20289142), (8, 10144571), (53, 1531256), (106, 765628), (212, 382814), (277, 292984), (424, 191407), (554, 146492), (691, 117448), (1108, 73246), (1382, 58724), (2216, 36623), (2764, 29362), (5528, 14681)]