248889640

素因数分解:

$2^3\times 5^1\times {\mathrm{6222241}}^1$

素因数の和:6222252

約数の個数: 16

約数和(自身を含む): 560001780

約数和(自身を除く): 311112140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6222241, 12444482, 24888964, 31111205, 49777928, 62222410, 124444820, 248889640]

約数ペア:

[(1, 248889640), (2, 124444820), (4, 62222410), (5, 49777928), (8, 31111205), (10, 24888964), (20, 12444482), (40, 6222241)]