55818280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{641}}^1$

素因数の和:970

約数の個数: 64

約数和(自身を含む): 144218880

約数和(自身を除く): 88400600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 622, 641, 1244, 1282, 1555, 2177, 2488, 2564, 3110, 3205, 4354, 4487, 5128, 6220, 6410, 8708, 8974, 10885, 12440, 12820, 17416, 17948, 21770, 22435, 25640, 35896, 43540, 44870, 87080, 89740, 179480, 199351, 398702, 797404, 996755, 1395457, 1594808, 1993510, 2790914, 3987020, 5581828, 6977285, 7974040, 11163656, 13954570, 27909140, 55818280]

約数ペア:

[(1, 55818280), (2, 27909140), (4, 13954570), (5, 11163656), (7, 7974040), (8, 6977285), (10, 5581828), (14, 3987020), (20, 2790914), (28, 1993510), (35, 1594808), (40, 1395457), (56, 996755), (70, 797404), (140, 398702), (280, 199351), (311, 179480), (622, 89740), (641, 87080), (1244, 44870), (1282, 43540), (1555, 35896), (2177, 25640), (2488, 22435), (2564, 21770), (3110, 17948), (3205, 17416), (4354, 12820), (4487, 12440), (5128, 10885), (6220, 8974), (6410, 8708)]