157224640

素因数分解:

$2^6\times 5^1\times {\mathrm{491327}}^1$

素因数の和:491344

約数の個数: 28

約数和(自身を含む): 374391936

約数和(自身を除く): 217167296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 491327, 982654, 1965308, 2456635, 3930616, 4913270, 7861232, 9826540, 15722464, 19653080, 31444928, 39306160, 78612320, 157224640]

約数ペア:

[(1, 157224640), (2, 78612320), (4, 39306160), (5, 31444928), (8, 19653080), (10, 15722464), (16, 9826540), (20, 7861232), (32, 4913270), (40, 3930616), (64, 2456635), (80, 1965308), (160, 982654), (320, 491327)]