251989360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{64283}}^1$

素因数の和:64310

約数の個数: 60

約数和(自身を含む): 681538968

約数和(自身を除く): 429549608

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, 64283, 128566, 257132, 321415, 449981, 514264, 642830, 899962, 1028528, 1285660, 1799924, 2249905, 2571320, 3149867, 3599848, 4499810, 5142640, 6299734, 7199696, 8999620, 12599468, 15749335, 17999240, 25198936, 31498670, 35998480, 50397872, 62997340, 125994680, 251989360]

約数ペア:

[(1, 251989360), (2, 125994680), (4, 62997340), (5, 50397872), (7, 35998480), (8, 31498670), (10, 25198936), (14, 17999240), (16, 15749335), (20, 12599468), (28, 8999620), (35, 7199696), (40, 6299734), (49, 5142640), (56, 4499810), (70, 3599848), (80, 3149867), (98, 2571320), (112, 2249905), (140, 1799924), (196, 1285660), (245, 1028528), (280, 899962), (392, 642830), (490, 514264), (560, 449981), (784, 321415), (980, 257132), (1960, 128566), (3920, 64283)]