15888620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72221}}^1$

素因数の和:72241

約数の個数: 24

約数和(自身を含む): 36399888

約数和(自身を除く): 20511268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72221, 144442, 288884, 361105, 722210, 794431, 1444420, 1588862, 3177724, 3972155, 7944310, 15888620]

約数ペア:

[(1, 15888620), (2, 7944310), (4, 3972155), (5, 3177724), (10, 1588862), (11, 1444420), (20, 794431), (22, 722210), (44, 361105), (55, 288884), (110, 144442), (220, 72221)]