28581520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32479}}^1$

素因数の和:32503

約数の個数: 40

約数和(自身を含む): 72495360

約数和(自身を除く): 43913840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32479, 64958, 129916, 162395, 259832, 324790, 357269, 519664, 649580, 714538, 1299160, 1429076, 1786345, 2598320, 2858152, 3572690, 5716304, 7145380, 14290760, 28581520]

約数ペア:

[(1, 28581520), (2, 14290760), (4, 7145380), (5, 5716304), (8, 3572690), (10, 2858152), (11, 2598320), (16, 1786345), (20, 1429076), (22, 1299160), (40, 714538), (44, 649580), (55, 519664), (80, 357269), (88, 324790), (110, 259832), (176, 162395), (220, 129916), (440, 64958), (880, 32479)]