81821268

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{5557}}^1$

素因数の和:5976

約数の個数: 36

約数和(自身を含む): 207368980

約数和(自身を除く): 125547712

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1636, 2454, 3681, 4908, 5557, 7362, 11114, 14724, 16671, 22228, 33342, 50013, 66684, 100026, 200052, 2272813, 4545626, 6818439, 9091252, 13636878, 20455317, 27273756, 40910634, 81821268]

約数ペア:

[(1, 81821268), (2, 40910634), (3, 27273756), (4, 20455317), (6, 13636878), (9, 9091252), (12, 6818439), (18, 4545626), (36, 2272813), (409, 200052), (818, 100026), (1227, 66684), (1636, 50013), (2454, 33342), (3681, 22228), (4908, 16671), (5557, 14724), (7362, 11114)]