28013885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{12821}}^1$

素因数の和:12868

約数の個数: 16

約数和(自身を含む): 36927360

約数和(自身を除く): 8913475

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 12821, 64105, 243599, 294883, 1217995, 1474415, 5602777, 28013885]

約数ペア:

[(1, 28013885), (5, 5602777), (19, 1474415), (23, 1217995), (95, 294883), (115, 243599), (437, 64105), (2185, 12821)]