208985520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{870773}}^1$

素因数の和:870789

約数の個数: 40

約数和(自身を含む): 647855856

約数和(自身を除く): 438870336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 870773, 1741546, 2612319, 3483092, 4353865, 5224638, 6966184, 8707730, 10449276, 13061595, 13932368, 17415460, 20898552, 26123190, 34830920, 41797104, 52246380, 69661840, 104492760, 208985520]

約数ペア:

[(1, 208985520), (2, 104492760), (3, 69661840), (4, 52246380), (5, 41797104), (6, 34830920), (8, 26123190), (10, 20898552), (12, 17415460), (15, 13932368), (16, 13061595), (20, 10449276), (24, 8707730), (30, 6966184), (40, 5224638), (48, 4353865), (60, 3483092), (80, 2612319), (120, 1741546), (240, 870773)]