25979990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{29191}}^1$

素因数の和:29287

約数の個数: 16

約数和(自身を含む): 47291040

約数和(自身を除く): 21311050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 29191, 58382, 145955, 291910, 2597999, 5195998, 12989995, 25979990]

約数ペア:

[(1, 25979990), (2, 12989995), (5, 5195998), (10, 2597999), (89, 291910), (178, 145955), (445, 58382), (890, 29191)]