81780686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 138862080

約数和(自身を除く): 57081394

約数列:

[1, 2, 13, 23, 26, 46, 163, 299, 326, 598, 839, 1678, 2119, 3749, 4238, 7498, 10907, 19297, 21814, 38594, 48737, 97474, 136757, 250861, 273514, 501722, 1777841, 3145411, 3555682, 6290822, 40890343, 81780686]

約数ペア:

[(1, 81780686), (2, 40890343), (13, 6290822), (23, 3555682), (26, 3145411), (46, 1777841), (163, 501722), (299, 273514), (326, 250861), (598, 136757), (839, 97474), (1678, 48737), (2119, 38594), (3749, 21814), (4238, 19297), (7498, 10907)]