81057980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{176213}}^1$

素因数の和:176245

約数の個数: 24

約数和(自身を含む): 177623712

約数和(自身を除く): 96565732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 176213, 352426, 704852, 881065, 1762130, 3524260, 4052899, 8105798, 16211596, 20264495, 40528990, 81057980]

約数ペア:

[(1, 81057980), (2, 40528990), (4, 20264495), (5, 16211596), (10, 8105798), (20, 4052899), (23, 3524260), (46, 1762130), (92, 881065), (115, 704852), (230, 352426), (460, 176213)]