8180020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7717}}^1$

素因数の和:7779

約数の個数: 24

約数和(自身を含む): 17504424

約数和(自身を除く): 9324404

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 7717, 15434, 30868, 38585, 77170, 154340, 409001, 818002, 1636004, 2045005, 4090010, 8180020]

約数ペア:

[(1, 8180020), (2, 4090010), (4, 2045005), (5, 1636004), (10, 818002), (20, 409001), (53, 154340), (106, 77170), (212, 38585), (265, 30868), (530, 15434), (1060, 7717)]