11977720

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1193}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 27079920

約数和(自身を除く): 15102200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1193, 1255, 2008, 2386, 2510, 4772, 5020, 5965, 9544, 10040, 11930, 23860, 47720, 299443, 598886, 1197772, 1497215, 2395544, 2994430, 5988860, 11977720]

約数ペア:

[(1, 11977720), (2, 5988860), (4, 2994430), (5, 2395544), (8, 1497215), (10, 1197772), (20, 598886), (40, 299443), (251, 47720), (502, 23860), (1004, 11930), (1193, 10040), (1255, 9544), (2008, 5965), (2386, 5020), (2510, 4772)]