628880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1123}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 1672512

約数和(自身を除く): 1043632

約数列:

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

約数ペア:

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