4442840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1019}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 10098000

約数和(自身を除く): 5655160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1019, 1090, 2038, 2180, 4076, 4360, 5095, 8152, 10190, 20380, 40760, 111071, 222142, 444284, 555355, 888568, 1110710, 2221420, 4442840]

約数ペア:

[(1, 4442840), (2, 2221420), (4, 1110710), (5, 888568), (8, 555355), (10, 444284), (20, 222142), (40, 111071), (109, 40760), (218, 20380), (436, 10190), (545, 8152), (872, 5095), (1019, 4360), (1090, 4076), (2038, 2180)]