20763220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25321}}^1$

素因数の和:25371

約数の個数: 24

約数和(自身を含む): 44668008

約数和(自身を除く): 23904788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25321, 50642, 101284, 126605, 253210, 506420, 1038161, 2076322, 4152644, 5190805, 10381610, 20763220]

約数ペア:

[(1, 20763220), (2, 10381610), (4, 5190805), (5, 4152644), (10, 2076322), (20, 1038161), (41, 506420), (82, 253210), (164, 126605), (205, 101284), (410, 50642), (820, 25321)]