15999680

素因数分解:

$2^6\times 5^1\times {\mathrm{49999}}^1$

素因数の和:50016

約数の個数: 28

約数和(自身を含む): 38100000

約数和(自身を除く): 22100320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 49999, 99998, 199996, 249995, 399992, 499990, 799984, 999980, 1599968, 1999960, 3199936, 3999920, 7999840, 15999680]

約数ペア:

[(1, 15999680), (2, 7999840), (4, 3999920), (5, 3199936), (8, 1999960), (10, 1599968), (16, 999980), (20, 799984), (32, 499990), (40, 399992), (64, 249995), (80, 199996), (160, 99998), (320, 49999)]