20487681040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8830897}}^1$

素因数の和:8830939

約数の個数: 40

約数和(自身を含む): 49276410840

約数和(自身を除く): 28788729800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8830897, 17661794, 35323588, 44154485, 70647176, 88308970, 141294352, 176617940, 256096013, 353235880, 512192026, 706471760, 1024384052, 1280480065, 2048768104, 2560960130, 4097536208, 5121920260, 10243840520, 20487681040]

約数ペア:

[(1, 20487681040), (2, 10243840520), (4, 5121920260), (5, 4097536208), (8, 2560960130), (10, 2048768104), (16, 1280480065), (20, 1024384052), (29, 706471760), (40, 512192026), (58, 353235880), (80, 256096013), (116, 176617940), (145, 141294352), (232, 88308970), (290, 70647176), (464, 44154485), (580, 35323588), (1160, 17661794), (2320, 8830897)]