813760

素因数分解:

$2^6\times 5^1\times {\mathrm{2543}}^1$

素因数の和:2560

約数の個数: 28

約数和(自身を含む): 1938528

約数和(自身を除く): 1124768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2543, 5086, 10172, 12715, 20344, 25430, 40688, 50860, 81376, 101720, 162752, 203440, 406880, 813760]

約数ペア:

[(1, 813760), (2, 406880), (4, 203440), (5, 162752), (8, 101720), (10, 81376), (16, 50860), (20, 40688), (32, 25430), (40, 20344), (64, 12715), (80, 10172), (160, 5086), (320, 2543)]