199987520

素因数分解:

$2^6\times 5^1\times {\mathrm{624961}}^1$

素因数の和:624978

約数の個数: 28

約数和(自身を含む): 476221044

約数和(自身を除く): 276233524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 624961, 1249922, 2499844, 3124805, 4999688, 6249610, 9999376, 12499220, 19998752, 24998440, 39997504, 49996880, 99993760, 199987520]

約数ペア:

[(1, 199987520), (2, 99993760), (4, 49996880), (5, 39997504), (8, 24998440), (10, 19998752), (16, 12499220), (20, 9999376), (32, 6249610), (40, 4999688), (64, 3124805), (80, 2499844), (160, 1249922), (320, 624961)]