664672090

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{337397}}^1$

素因数の和:337601

約数の個数: 16

約数和(自身を含む): 1202486472

約数和(自身を除く): 537814382

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 337397, 674794, 1686985, 3373970, 66467209, 132934418, 332336045, 664672090]

約数ペア:

[(1, 664672090), (2, 332336045), (5, 132934418), (10, 66467209), (197, 3373970), (394, 1686985), (985, 674794), (1970, 337397)]