128529040

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3299}}^1$

素因数の和:3799

約数の個数: 40

約数和(自身を含む): 299534400

約数和(自身を除く): 171005360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2435, 3299, 3896, 4870, 6598, 7792, 9740, 13196, 16495, 19480, 26392, 32990, 38960, 52784, 65980, 131960, 263920, 1606613, 3213226, 6426452, 8033065, 12852904, 16066130, 25705808, 32132260, 64264520, 128529040]

約数ペア:

[(1, 128529040), (2, 64264520), (4, 32132260), (5, 25705808), (8, 16066130), (10, 12852904), (16, 8033065), (20, 6426452), (40, 3213226), (80, 1606613), (487, 263920), (974, 131960), (1948, 65980), (2435, 52784), (3299, 38960), (3896, 32990), (4870, 26392), (6598, 19480), (7792, 16495), (9740, 13196)]