128425876

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{2063}}^1$

素因数の和:2343

約数の個数: 24

約数和(自身を含む): 228856320

約数和(自身を除く): 100430444

約数列:

[1, 2, 4, 79, 158, 197, 316, 394, 788, 2063, 4126, 8252, 15563, 31126, 62252, 162977, 325954, 406411, 651908, 812822, 1625644, 32106469, 64212938, 128425876]

約数ペア:

[(1, 128425876), (2, 64212938), (4, 32106469), (79, 1625644), (158, 812822), (197, 651908), (316, 406411), (394, 325954), (788, 162977), (2063, 62252), (4126, 31126), (8252, 15563)]