20225745

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 36571392

約数和(自身を除く): 16345647

約数列:

[1, 3, 5, 9, 15, 45, 47, 73, 131, 141, 219, 235, 365, 393, 423, 655, 657, 705, 1095, 1179, 1965, 2115, 3285, 3431, 5895, 6157, 9563, 10293, 17155, 18471, 28689, 30785, 30879, 47815, 51465, 55413, 86067, 92355, 143445, 154395, 277065, 430335, 449461, 1348383, 2247305, 4045149, 6741915, 20225745]

約数ペア:

[(1, 20225745), (3, 6741915), (5, 4045149), (9, 2247305), (15, 1348383), (45, 449461), (47, 430335), (73, 277065), (131, 154395), (141, 143445), (219, 92355), (235, 86067), (365, 55413), (393, 51465), (423, 47815), (655, 30879), (657, 30785), (705, 28689), (1095, 18471), (1179, 17155), (1965, 10293), (2115, 9563), (3285, 6157), (3431, 5895)]