247203440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{280913}}^1$

素因数の和:280937

約数の個数: 40

約数和(自身を含む): 627000048

約数和(自身を除く): 379796608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 280913, 561826, 1123652, 1404565, 2247304, 2809130, 3090043, 4494608, 5618260, 6180086, 11236520, 12360172, 15450215, 22473040, 24720344, 30900430, 49440688, 61800860, 123601720, 247203440]

約数ペア:

[(1, 247203440), (2, 123601720), (4, 61800860), (5, 49440688), (8, 30900430), (10, 24720344), (11, 22473040), (16, 15450215), (20, 12360172), (22, 11236520), (40, 6180086), (44, 5618260), (55, 4494608), (80, 3090043), (88, 2809130), (110, 2247304), (176, 1404565), (220, 1123652), (440, 561826), (880, 280913)]