255524720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{290369}}^1$

素因数の和:290393

約数の個数: 40

約数和(自身を含む): 648105840

約数和(自身を除く): 392581120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 290369, 580738, 1161476, 1451845, 2322952, 2903690, 3194059, 4645904, 5807380, 6388118, 11614760, 12776236, 15970295, 23229520, 25552472, 31940590, 51104944, 63881180, 127762360, 255524720]

約数ペア:

[(1, 255524720), (2, 127762360), (4, 63881180), (5, 51104944), (8, 31940590), (10, 25552472), (11, 23229520), (16, 15970295), (20, 12776236), (22, 11614760), (40, 6388118), (44, 5807380), (55, 4645904), (80, 3194059), (88, 2903690), (110, 2322952), (176, 1451845), (220, 1161476), (440, 580738), (880, 290369)]