27521720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16001}}^1$

素因数の和:16055

約数の個数: 32

約数和(自身を含む): 63367920

約数和(自身を除く): 35846200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16001, 32002, 64004, 80005, 128008, 160010, 320020, 640040, 688043, 1376086, 2752172, 3440215, 5504344, 6880430, 13760860, 27521720]

約数ペア:

[(1, 27521720), (2, 13760860), (4, 6880430), (5, 5504344), (8, 3440215), (10, 2752172), (20, 1376086), (40, 688043), (43, 640040), (86, 320020), (172, 160010), (215, 128008), (344, 80005), (430, 64004), (860, 32002), (1720, 16001)]