20199498064

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{399389}}^1$

素因数の和:399535

約数の個数: 40

約数和(自身を含む): 40857597000

約数和(自身を除く): 20658098936

約数列:

[1, 2, 4, 8, 16, 29, 58, 109, 116, 218, 232, 436, 464, 872, 1744, 3161, 6322, 12644, 25288, 50576, 399389, 798778, 1597556, 3195112, 6390224, 11582281, 23164562, 43533401, 46329124, 87066802, 92658248, 174133604, 185316496, 348267208, 696534416, 1262468629, 2524937258, 5049874516, 10099749032, 20199498064]

約数ペア:

[(1, 20199498064), (2, 10099749032), (4, 5049874516), (8, 2524937258), (16, 1262468629), (29, 696534416), (58, 348267208), (109, 185316496), (116, 174133604), (218, 92658248), (232, 87066802), (436, 46329124), (464, 43533401), (872, 23164562), (1744, 11582281), (3161, 6390224), (6322, 3195112), (12644, 1597556), (25288, 798778), (50576, 399389)]