555280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1$

素因数の和:655

約数の個数: 40

約数和(自身を含む): 1410624

約数和(自身を除く): 855344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 631, 880, 1262, 2524, 3155, 5048, 6310, 6941, 10096, 12620, 13882, 25240, 27764, 34705, 50480, 55528, 69410, 111056, 138820, 277640, 555280]

約数ペア:

[(1, 555280), (2, 277640), (4, 138820), (5, 111056), (8, 69410), (10, 55528), (11, 50480), (16, 34705), (20, 27764), (22, 25240), (40, 13882), (44, 12620), (55, 10096), (80, 6941), (88, 6310), (110, 5048), (176, 3155), (220, 2524), (440, 1262), (631, 880)]