251085015

素因数分解:

$3^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1873}}^1$

素因数の和:2221

約数の個数: 40

約数和(自身を含む): 451693968

約数和(自身を除く): 200608953

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 331, 405, 993, 1655, 1873, 2979, 4965, 5619, 8937, 9365, 14895, 16857, 26811, 28095, 44685, 50571, 84285, 134055, 151713, 252855, 619963, 758565, 1859889, 3099815, 5579667, 9299445, 16739001, 27898335, 50217003, 83695005, 251085015]

約数ペア:

[(1, 251085015), (3, 83695005), (5, 50217003), (9, 27898335), (15, 16739001), (27, 9299445), (45, 5579667), (81, 3099815), (135, 1859889), (331, 758565), (405, 619963), (993, 252855), (1655, 151713), (1873, 134055), (2979, 84285), (4965, 50571), (5619, 44685), (8937, 28095), (9365, 26811), (14895, 16857)]