261182512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{577}}^1\times {\mathrm{1489}}^1$

素因数の和:2093

約数の個数: 40

約数和(自身を含む): 533956400

約数和(自身を除く): 272773888

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 577, 1154, 1489, 2308, 2978, 4616, 5956, 9232, 10963, 11912, 21926, 23824, 28291, 43852, 56582, 87704, 113164, 175408, 226328, 452656, 859153, 1718306, 3436612, 6873224, 13746448, 16323907, 32647814, 65295628, 130591256, 261182512]

約数ペア:

[(1, 261182512), (2, 130591256), (4, 65295628), (8, 32647814), (16, 16323907), (19, 13746448), (38, 6873224), (76, 3436612), (152, 1718306), (304, 859153), (577, 452656), (1154, 226328), (1489, 175408), (2308, 113164), (2978, 87704), (4616, 56582), (5956, 43852), (9232, 28291), (10963, 23824), (11912, 21926)]