1257760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{1123}}^1$

素因数の和:1145

約数の個数: 48

約数和(自身を含む): 3398976

約数和(自身を除く): 2141216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 1123, 2246, 4492, 5615, 7861, 8984, 11230, 15722, 17968, 22460, 31444, 35936, 39305, 44920, 62888, 78610, 89840, 125776, 157220, 179680, 251552, 314440, 628880, 1257760]

約数ペア:

[(1, 1257760), (2, 628880), (4, 314440), (5, 251552), (7, 179680), (8, 157220), (10, 125776), (14, 89840), (16, 78610), (20, 62888), (28, 44920), (32, 39305), (35, 35936), (40, 31444), (56, 22460), (70, 17968), (80, 15722), (112, 11230), (140, 8984), (160, 7861), (224, 5615), (280, 4492), (560, 2246), (1120, 1123)]