28965304840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{443437}}^1$

素因数の和:443542

約数の個数: 64

約数和(自身を含む): 68963477760

約数和(自身を除く): 39998172920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 568, 710, 920, 1420, 1633, 2840, 3266, 6532, 8165, 13064, 16330, 32660, 65320, 443437, 886874, 1773748, 2217185, 3547496, 4434370, 8868740, 10199051, 17737480, 20398102, 31484027, 40796204, 50995255, 62968054, 81592408, 101990510, 125936108, 157420135, 203981020, 251872216, 314840270, 407962040, 629680540, 724132621, 1259361080, 1448265242, 2896530484, 3620663105, 5793060968, 7241326210, 14482652420, 28965304840]

約数ペア:

[(1, 28965304840), (2, 14482652420), (4, 7241326210), (5, 5793060968), (8, 3620663105), (10, 2896530484), (20, 1448265242), (23, 1259361080), (40, 724132621), (46, 629680540), (71, 407962040), (92, 314840270), (115, 251872216), (142, 203981020), (184, 157420135), (230, 125936108), (284, 101990510), (355, 81592408), (460, 62968054), (568, 50995255), (710, 40796204), (920, 31484027), (1420, 20398102), (1633, 17737480), (2840, 10199051), (3266, 8868740), (6532, 4434370), (8165, 3547496), (13064, 2217185), (16330, 1773748), (32660, 886874), (65320, 443437)]