8118820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9901}}^1$

素因数の和:9951

約数の個数: 24

約数和(自身を含む): 17467128

約数和(自身を除く): 9348308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9901, 19802, 39604, 49505, 99010, 198020, 405941, 811882, 1623764, 2029705, 4059410, 8118820]

約数ペア:

[(1, 8118820), (2, 4059410), (4, 2029705), (5, 1623764), (10, 811882), (20, 405941), (41, 198020), (82, 99010), (164, 49505), (205, 39604), (410, 19802), (820, 9901)]