2557080320

素因数分解:

$2^8\times 5^1\times {\mathrm{1997719}}^1$

素因数の和:1997740

約数の個数: 36

約数和(自身を含む): 6125009520

約数和(自身を除く): 3567929200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1997719, 3995438, 7990876, 9988595, 15981752, 19977190, 31963504, 39954380, 63927008, 79908760, 127854016, 159817520, 255708032, 319635040, 511416064, 639270080, 1278540160, 2557080320]

約数ペア:

[(1, 2557080320), (2, 1278540160), (4, 639270080), (5, 511416064), (8, 319635040), (10, 255708032), (16, 159817520), (20, 127854016), (32, 79908760), (40, 63927008), (64, 39954380), (80, 31963504), (128, 19977190), (160, 15981752), (256, 9988595), (320, 7990876), (640, 3995438), (1280, 1997719)]