30840675

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 53294208

約数和(自身を除く): 22453533

約数列:

[1, 3, 5, 15, 25, 43, 73, 75, 129, 131, 215, 219, 365, 393, 645, 655, 1075, 1095, 1825, 1965, 3139, 3225, 3275, 5475, 5633, 9417, 9563, 9825, 15695, 16899, 28165, 28689, 47085, 47815, 78475, 84495, 140825, 143445, 235425, 239075, 411209, 422475, 717225, 1233627, 2056045, 6168135, 10280225, 30840675]

約数ペア:

[(1, 30840675), (3, 10280225), (5, 6168135), (15, 2056045), (25, 1233627), (43, 717225), (73, 422475), (75, 411209), (129, 239075), (131, 235425), (215, 143445), (219, 140825), (365, 84495), (393, 78475), (645, 47815), (655, 47085), (1075, 28689), (1095, 28165), (1825, 16899), (1965, 15695), (3139, 9825), (3225, 9563), (3275, 9417), (5475, 5633)]