787055920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3613}}^1$

素因数の和:4022

約数の個数: 80

約数和(自身を含む): 2097276480

約数和(自身を除く): 1310220560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 389, 560, 778, 1556, 1945, 2723, 3112, 3613, 3890, 5446, 6224, 7226, 7780, 10892, 13615, 14452, 15560, 18065, 21784, 25291, 27230, 28904, 31120, 36130, 43568, 50582, 54460, 57808, 72260, 101164, 108920, 126455, 144520, 202328, 217840, 252910, 289040, 404656, 505820, 1011640, 1405457, 2023280, 2810914, 5621828, 7027285, 9838199, 11243656, 14054570, 19676398, 22487312, 28109140, 39352796, 49190995, 56218280, 78705592, 98381990, 112436560, 157411184, 196763980, 393527960, 787055920]

約数ペア:

[(1, 787055920), (2, 393527960), (4, 196763980), (5, 157411184), (7, 112436560), (8, 98381990), (10, 78705592), (14, 56218280), (16, 49190995), (20, 39352796), (28, 28109140), (35, 22487312), (40, 19676398), (56, 14054570), (70, 11243656), (80, 9838199), (112, 7027285), (140, 5621828), (280, 2810914), (389, 2023280), (560, 1405457), (778, 1011640), (1556, 505820), (1945, 404656), (2723, 289040), (3112, 252910), (3613, 217840), (3890, 202328), (5446, 144520), (6224, 126455), (7226, 108920), (7780, 101164), (10892, 72260), (13615, 57808), (14452, 54460), (15560, 50582), (18065, 43568), (21784, 36130), (25291, 31120), (27230, 28904)]