218897725

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 276946560

約数和(自身を除く): 58048835

約数列:

[1, 5, 25, 89, 131, 445, 655, 751, 2225, 3275, 3755, 11659, 18775, 58295, 66839, 98381, 291475, 334195, 491905, 1670975, 2459525, 8755909, 43779545, 218897725]

約数ペア:

[(1, 218897725), (5, 43779545), (25, 8755909), (89, 2459525), (131, 1670975), (445, 491905), (655, 334195), (751, 291475), (2225, 98381), (3275, 66839), (3755, 58295), (11659, 18775)]