4245198340

素因数分解:

$2^2\times 5^1\times {\mathrm{212259917}}^1$

素因数の和:212259926

約数の個数: 12

約数和(自身を含む): 8914916556

約数和(自身を除く): 4669718216

約数列:

[1, 2, 4, 5, 10, 20, 212259917, 424519834, 849039668, 1061299585, 2122599170, 4245198340]

約数ペア:

[(1, 4245198340), (2, 2122599170), (4, 1061299585), (5, 849039668), (10, 424519834), (20, 212259917)]