81291204

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{5521}}^1$

素因数の和:5940

約数の個数: 36

約数和(自身を含む): 206025820

約数和(自身を除く): 124734616

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1636, 2454, 3681, 4908, 5521, 7362, 11042, 14724, 16563, 22084, 33126, 49689, 66252, 99378, 198756, 2258089, 4516178, 6774267, 9032356, 13548534, 20322801, 27097068, 40645602, 81291204]

約数ペア:

[(1, 81291204), (2, 40645602), (3, 27097068), (4, 20322801), (6, 13548534), (9, 9032356), (12, 6774267), (18, 4516178), (36, 2258089), (409, 198756), (818, 99378), (1227, 66252), (1636, 49689), (2454, 33126), (3681, 22084), (4908, 16563), (5521, 14724), (7362, 11042)]