39980440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43457}}^1$

素因数の和:43491

約数の個数: 32

約数和(自身を含む): 93869280

約数和(自身を除く): 53888840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 43457, 86914, 173828, 217285, 347656, 434570, 869140, 999511, 1738280, 1999022, 3998044, 4997555, 7996088, 9995110, 19990220, 39980440]

約数ペア:

[(1, 39980440), (2, 19990220), (4, 9995110), (5, 7996088), (8, 4997555), (10, 3998044), (20, 1999022), (23, 1738280), (40, 999511), (46, 869140), (92, 434570), (115, 347656), (184, 217285), (230, 173828), (460, 86914), (920, 43457)]