80851235

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 106235712

約数和(自身を除く): 25384477

約数列:

[1, 5, 17, 53, 85, 131, 137, 265, 655, 685, 901, 2227, 2329, 4505, 6943, 7261, 11135, 11645, 17947, 34715, 36305, 89735, 118031, 123437, 305099, 590155, 617185, 951191, 1525495, 4755955, 16170247, 80851235]

約数ペア:

[(1, 80851235), (5, 16170247), (17, 4755955), (53, 1525495), (85, 951191), (131, 617185), (137, 590155), (265, 305099), (655, 123437), (685, 118031), (901, 89735), (2227, 36305), (2329, 34715), (4505, 17947), (6943, 11645), (7261, 11135)]