839440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1499}}^1$

素因数の和:1519

約数の個数: 40

約数和(自身を含む): 2232000

約数和(自身を除く): 1392560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1499, 2998, 5996, 7495, 10493, 11992, 14990, 20986, 23984, 29980, 41972, 52465, 59960, 83944, 104930, 119920, 167888, 209860, 419720, 839440]

約数ペア:

[(1, 839440), (2, 419720), (4, 209860), (5, 167888), (7, 119920), (8, 104930), (10, 83944), (14, 59960), (16, 52465), (20, 41972), (28, 29980), (35, 23984), (40, 20986), (56, 14990), (70, 11992), (80, 10493), (112, 7495), (140, 5996), (280, 2998), (560, 1499)]