31772840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72211}}^1$

素因数の和:72233

約数の個数: 32

約数和(自身を含む): 77988960

約数和(自身を除く): 46216120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72211, 144422, 288844, 361055, 577688, 722110, 794321, 1444220, 1588642, 2888440, 3177284, 3971605, 6354568, 7943210, 15886420, 31772840]

約数ペア:

[(1, 31772840), (2, 15886420), (4, 7943210), (5, 6354568), (8, 3971605), (10, 3177284), (11, 2888440), (20, 1588642), (22, 1444220), (40, 794321), (44, 722110), (55, 577688), (88, 361055), (110, 288844), (220, 144422), (440, 72211)]