7980450040

素因数分解:

$2^3\times 5^1\times {\mathrm{2447}}^1\times {\mathrm{81533}}^1$

素因数の和:83991

約数の個数: 32

約数和(自身を含む): 17963570880

約数和(自身を除く): 9983120840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2447, 4894, 9788, 12235, 19576, 24470, 48940, 81533, 97880, 163066, 326132, 407665, 652264, 815330, 1630660, 3261320, 199511251, 399022502, 798045004, 997556255, 1596090008, 1995112510, 3990225020, 7980450040]

約数ペア:

[(1, 7980450040), (2, 3990225020), (4, 1995112510), (5, 1596090008), (8, 997556255), (10, 798045004), (20, 399022502), (40, 199511251), (2447, 3261320), (4894, 1630660), (9788, 815330), (12235, 652264), (19576, 407665), (24470, 326132), (48940, 163066), (81533, 97880)]