20551190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8123}}^1$

素因数の和:8164

約数の個数: 32

約数和(自身を含む): 42114816

約数和(自身を除く): 21563626

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8123, 16246, 40615, 81230, 89353, 178706, 186829, 373658, 446765, 893530, 934145, 1868290, 2055119, 4110238, 10275595, 20551190]

約数ペア:

[(1, 20551190), (2, 10275595), (5, 4110238), (10, 2055119), (11, 1868290), (22, 934145), (23, 893530), (46, 446765), (55, 373658), (110, 186829), (115, 178706), (230, 89353), (253, 81230), (506, 40615), (1265, 16246), (2530, 8123)]