280056560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71443}}^1$

素因数の和:71470

約数の個数: 60

約数和(自身を含む): 757449288

約数和(自身を除く): 477392728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 71443, 142886, 285772, 357215, 500101, 571544, 714430, 1000202, 1143088, 1428860, 2000404, 2500505, 2857720, 3500707, 4000808, 5001010, 5715440, 7001414, 8001616, 10002020, 14002828, 17503535, 20004040, 28005656, 35007070, 40008080, 56011312, 70014140, 140028280, 280056560]

約数ペア:

[(1, 280056560), (2, 140028280), (4, 70014140), (5, 56011312), (7, 40008080), (8, 35007070), (10, 28005656), (14, 20004040), (16, 17503535), (20, 14002828), (28, 10002020), (35, 8001616), (40, 7001414), (49, 5715440), (56, 5001010), (70, 4000808), (80, 3500707), (98, 2857720), (112, 2500505), (140, 2000404), (196, 1428860), (245, 1143088), (280, 1000202), (392, 714430), (490, 571544), (560, 500101), (784, 357215), (980, 285772), (1960, 142886), (3920, 71443)]