81184360

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9619}}^1$

素因数の和:9841

約数の個数: 32

約数和(自身を含む): 183549600

約数和(自身を除く): 102365240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 9619, 19238, 38476, 48095, 76952, 96190, 192380, 384760, 2029609, 4059218, 8118436, 10148045, 16236872, 20296090, 40592180, 81184360]

約数ペア:

[(1, 81184360), (2, 40592180), (4, 20296090), (5, 16236872), (8, 10148045), (10, 8118436), (20, 4059218), (40, 2029609), (211, 384760), (422, 192380), (844, 96190), (1055, 76952), (1688, 48095), (2110, 38476), (4220, 19238), (8440, 9619)]