61405280

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1721}}^1$

素因数の和:1959

約数の個数: 48

約数和(自身を含む): 145805184

約数和(自身を除く): 84399904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 892, 1115, 1721, 1784, 2230, 3442, 3568, 4460, 6884, 7136, 8605, 8920, 13768, 17210, 17840, 27536, 34420, 35680, 55072, 68840, 137680, 275360, 383783, 767566, 1535132, 1918915, 3070264, 3837830, 6140528, 7675660, 12281056, 15351320, 30702640, 61405280]

約数ペア:

[(1, 61405280), (2, 30702640), (4, 15351320), (5, 12281056), (8, 7675660), (10, 6140528), (16, 3837830), (20, 3070264), (32, 1918915), (40, 1535132), (80, 767566), (160, 383783), (223, 275360), (446, 137680), (892, 68840), (1115, 55072), (1721, 35680), (1784, 34420), (2230, 27536), (3442, 17840), (3568, 17210), (4460, 13768), (6884, 8920), (7136, 8605)]