128148940

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{43003}}^1$

素因数の和:43161

約数の個数: 24

約数和(自身を含む): 270925200

約数和(自身を除く): 142776260

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 43003, 86006, 172012, 215015, 430030, 860060, 6407447, 12814894, 25629788, 32037235, 64074470, 128148940]

約数ペア:

[(1, 128148940), (2, 64074470), (4, 32037235), (5, 25629788), (10, 12814894), (20, 6407447), (149, 860060), (298, 430030), (596, 215015), (745, 172012), (1490, 86006), (2980, 43003)]