81568120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88661}}^1$

素因数の和:88695

約数の個数: 32

約数和(自身を含む): 191509920

約数和(自身を除く): 109941800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88661, 177322, 354644, 443305, 709288, 886610, 1773220, 2039203, 3546440, 4078406, 8156812, 10196015, 16313624, 20392030, 40784060, 81568120]

約数ペア:

[(1, 81568120), (2, 40784060), (4, 20392030), (5, 16313624), (8, 10196015), (10, 8156812), (20, 4078406), (23, 3546440), (40, 2039203), (46, 1773220), (92, 886610), (115, 709288), (184, 443305), (230, 354644), (460, 177322), (920, 88661)]