331340560

素因数分解:

$2^4\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{2287}}^1$

素因数の和:4111

約数の個数: 40

約数和(自身を含む): 771129216

約数和(自身を除く): 439788656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1811, 2287, 3622, 4574, 7244, 9055, 9148, 11435, 14488, 18110, 18296, 22870, 28976, 36220, 36592, 45740, 72440, 91480, 144880, 182960, 4141757, 8283514, 16567028, 20708785, 33134056, 41417570, 66268112, 82835140, 165670280, 331340560]

約数ペア:

[(1, 331340560), (2, 165670280), (4, 82835140), (5, 66268112), (8, 41417570), (10, 33134056), (16, 20708785), (20, 16567028), (40, 8283514), (80, 4141757), (1811, 182960), (2287, 144880), (3622, 91480), (4574, 72440), (7244, 45740), (9055, 36592), (9148, 36220), (11435, 28976), (14488, 22870), (18110, 18296)]