27988840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63611}}^1$

素因数の和:63633

約数の個数: 32

約数和(自身を含む): 68700960

約数和(自身を除く): 40712120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63611, 127222, 254444, 318055, 508888, 636110, 699721, 1272220, 1399442, 2544440, 2798884, 3498605, 5597768, 6997210, 13994420, 27988840]

約数ペア:

[(1, 27988840), (2, 13994420), (4, 6997210), (5, 5597768), (8, 3498605), (10, 2798884), (11, 2544440), (20, 1399442), (22, 1272220), (40, 699721), (44, 636110), (55, 508888), (88, 318055), (110, 254444), (220, 127222), (440, 63611)]