87664340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{40213}}^1$

素因数の和:40331

約数の個数: 24

約数和(自身を含む): 185788680

約数和(自身を除く): 98124340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 40213, 80426, 160852, 201065, 402130, 804260, 4383217, 8766434, 17532868, 21916085, 43832170, 87664340]

約数ペア:

[(1, 87664340), (2, 43832170), (4, 21916085), (5, 17532868), (10, 8766434), (20, 4383217), (109, 804260), (218, 402130), (436, 201065), (545, 160852), (1090, 80426), (2180, 40213)]