639847160320

素因数分解:

$2^9\times 5^1\times {\mathrm{249940297}}^1$

素因数の和:249940320

約数の個数: 40

約数和(自身を含む): 1534133549124

約数和(自身を除く): 894286388804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 249940297, 499880594, 999761188, 1249701485, 1999522376, 2499402970, 3999044752, 4998805940, 7998089504, 9997611880, 15996179008, 19995223760, 31992358016, 39990447520, 63984716032, 79980895040, 127969432064, 159961790080, 319923580160, 639847160320]

約数ペア:

[(1, 639847160320), (2, 319923580160), (4, 159961790080), (5, 127969432064), (8, 79980895040), (10, 63984716032), (16, 39990447520), (20, 31992358016), (32, 19995223760), (40, 15996179008), (64, 9997611880), (80, 7998089504), (128, 4998805940), (160, 3999044752), (256, 2499402970), (320, 1999522376), (512, 1249701485), (640, 999761188), (1280, 499880594), (2560, 249940297)]