939980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1093}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 2021712

約数和(自身を除く): 1081732

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1093, 2186, 4372, 5465, 10930, 21860, 46999, 93998, 187996, 234995, 469990, 939980]

約数ペア:

[(1, 939980), (2, 469990), (4, 234995), (5, 187996), (10, 93998), (20, 46999), (43, 21860), (86, 10930), (172, 5465), (215, 4372), (430, 2186), (860, 1093)]