401040320

素因数分解:

$2^6\times 5^1\times {\mathrm{1253251}}^1$

素因数の和:1253268

約数の個数: 28

約数和(自身を含む): 954978024

約数和(自身を除く): 553937704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1253251, 2506502, 5013004, 6266255, 10026008, 12532510, 20052016, 25065020, 40104032, 50130040, 80208064, 100260080, 200520160, 401040320]

約数ペア:

[(1, 401040320), (2, 200520160), (4, 100260080), (5, 80208064), (8, 50130040), (10, 40104032), (16, 25065020), (20, 20052016), (32, 12532510), (40, 10026008), (64, 6266255), (80, 5013004), (160, 2506502), (320, 1253251)]