49919360

素因数分解:

$2^7\times 5^1\times {\mathrm{77999}}^1$

素因数の和:78018

約数の個数: 32

約数和(自身を含む): 119340000

約数和(自身を除く): 69420640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 77999, 155998, 311996, 389995, 623992, 779990, 1247984, 1559980, 2495968, 3119960, 4991936, 6239920, 9983872, 12479840, 24959680, 49919360]

約数ペア:

[(1, 49919360), (2, 24959680), (4, 12479840), (5, 9983872), (8, 6239920), (10, 4991936), (16, 3119960), (20, 2495968), (32, 1559980), (40, 1247984), (64, 779990), (80, 623992), (128, 389995), (160, 311996), (320, 155998), (640, 77999)]