642021440

素因数分解:

$2^6\times 5^1\times {\mathrm{2006317}}^1$

素因数の和:2006334

約数の個数: 28

約数和(自身を含む): 1528814316

約数和(自身を除く): 886792876

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2006317, 4012634, 8025268, 10031585, 16050536, 20063170, 32101072, 40126340, 64202144, 80252680, 128404288, 160505360, 321010720, 642021440]

約数ペア:

[(1, 642021440), (2, 321010720), (4, 160505360), (5, 128404288), (8, 80252680), (10, 64202144), (16, 40126340), (20, 32101072), (32, 20063170), (40, 16050536), (64, 10031585), (80, 8025268), (160, 4012634), (320, 2006317)]