239721980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{178897}}^1$

素因数の和:178973

約数の個数: 24

約数和(自身を含む): 510932688

約数和(自身を除く): 271210708

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 178897, 357794, 715588, 894485, 1788970, 3577940, 11986099, 23972198, 47944396, 59930495, 119860990, 239721980]

約数ペア:

[(1, 239721980), (2, 119860990), (4, 59930495), (5, 47944396), (10, 23972198), (20, 11986099), (67, 3577940), (134, 1788970), (268, 894485), (335, 715588), (670, 357794), (1340, 178897)]