80871544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1999}}^1$

素因数の和:2407

約数の個数: 32

約数和(自身を含む): 163800000

約数和(自身を除く): 82928456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 389, 778, 1556, 1999, 3112, 3998, 5057, 7996, 10114, 15992, 20228, 25987, 40456, 51974, 103948, 207896, 777611, 1555222, 3110444, 6220888, 10108943, 20217886, 40435772, 80871544]

約数ペア:

[(1, 80871544), (2, 40435772), (4, 20217886), (8, 10108943), (13, 6220888), (26, 3110444), (52, 1555222), (104, 777611), (389, 207896), (778, 103948), (1556, 51974), (1999, 40456), (3112, 25987), (3998, 20228), (5057, 15992), (7996, 10114)]