66994460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257671}}^1$

素因数の和:257693

約数の個数: 24

約数和(自身を含む): 151511136

約数和(自身を除く): 84516676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257671, 515342, 1030684, 1288355, 2576710, 3349723, 5153420, 6699446, 13398892, 16748615, 33497230, 66994460]

約数ペア:

[(1, 66994460), (2, 33497230), (4, 16748615), (5, 13398892), (10, 6699446), (13, 5153420), (20, 3349723), (26, 2576710), (52, 1288355), (65, 1030684), (130, 515342), (260, 257671)]