19585120

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1123}}^1$

素因数の和:1247

約数の個数: 48

約数和(自身を含む): 46735920

約数和(自身を除く): 27150800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1123, 1744, 2180, 2246, 3488, 4360, 4492, 5615, 8720, 8984, 11230, 17440, 17968, 22460, 35936, 44920, 89840, 122407, 179680, 244814, 489628, 612035, 979256, 1224070, 1958512, 2448140, 3917024, 4896280, 9792560, 19585120]

約数ペア:

[(1, 19585120), (2, 9792560), (4, 4896280), (5, 3917024), (8, 2448140), (10, 1958512), (16, 1224070), (20, 979256), (32, 612035), (40, 489628), (80, 244814), (109, 179680), (160, 122407), (218, 89840), (436, 44920), (545, 35936), (872, 22460), (1090, 17968), (1123, 17440), (1744, 11230), (2180, 8984), (2246, 8720), (3488, 5615), (4360, 4492)]