12801975

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1303}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 21343872

約数和(自身を除く): 8541897

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1303, 1965, 3275, 3909, 6515, 9825, 19545, 32575, 97725, 170693, 512079, 853465, 2560395, 4267325, 12801975]

約数ペア:

[(1, 12801975), (3, 4267325), (5, 2560395), (15, 853465), (25, 512079), (75, 170693), (131, 97725), (393, 32575), (655, 19545), (1303, 9825), (1965, 6515), (3275, 3909)]