13220140

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1997}}^1$

素因数の和:2337

約数の個数: 24

約数和(自身を含む): 27860112

約数和(自身を除く): 14639972

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 1997, 3310, 3994, 6620, 7988, 9985, 19970, 39940, 661007, 1322014, 2644028, 3305035, 6610070, 13220140]

約数ペア:

[(1, 13220140), (2, 6610070), (4, 3305035), (5, 2644028), (10, 1322014), (20, 661007), (331, 39940), (662, 19970), (1324, 9985), (1655, 7988), (1997, 6620), (3310, 3994)]