12490280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28387}}^1$

素因数の和:28409

約数の個数: 32

約数和(自身を含む): 30659040

約数和(自身を除く): 18168760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28387, 56774, 113548, 141935, 227096, 283870, 312257, 567740, 624514, 1135480, 1249028, 1561285, 2498056, 3122570, 6245140, 12490280]

約数ペア:

[(1, 12490280), (2, 6245140), (4, 3122570), (5, 2498056), (8, 1561285), (10, 1249028), (11, 1135480), (20, 624514), (22, 567740), (40, 312257), (44, 283870), (55, 227096), (88, 141935), (110, 113548), (220, 56774), (440, 28387)]