25574540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6491}}^1$

素因数の和:6697

約数の個数: 24

約数和(自身を含む): 53987472

約数和(自身を除く): 28412932

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 6491, 12982, 25964, 32455, 64910, 129820, 1278727, 2557454, 5114908, 6393635, 12787270, 25574540]

約数ペア:

[(1, 25574540), (2, 12787270), (4, 6393635), (5, 5114908), (10, 2557454), (20, 1278727), (197, 129820), (394, 64910), (788, 32455), (985, 25964), (1970, 12982), (3940, 6491)]