256547493

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:325

約数の個数: 56

約数和(自身を含む): 412996608

約数和(自身を除く): 156449115

約数列:

[1, 3, 9, 17, 27, 51, 81, 127, 153, 163, 243, 381, 459, 489, 729, 1143, 1377, 1467, 2159, 2771, 3429, 4131, 4401, 6477, 8313, 10287, 12393, 13203, 19431, 20701, 24939, 30861, 39609, 58293, 62103, 74817, 92583, 118827, 174879, 186309, 224451, 351917, 524637, 558927, 673353, 1055751, 1573911, 1676781, 2020059, 3167253, 5030343, 9501759, 15091029, 28505277, 85515831, 256547493]

約数ペア:

[(1, 256547493), (3, 85515831), (9, 28505277), (17, 15091029), (27, 9501759), (51, 5030343), (81, 3167253), (127, 2020059), (153, 1676781), (163, 1573911), (243, 1055751), (381, 673353), (459, 558927), (489, 524637), (729, 351917), (1143, 224451), (1377, 186309), (1467, 174879), (2159, 118827), (2771, 92583), (3429, 74817), (4131, 62103), (4401, 58293), (6477, 39609), (8313, 30861), (10287, 24939), (12393, 20701), (13203, 19431)]