156996820015

素因数分解:

$5^1\times 7^2\times {\mathrm{640803347}}^1$

素因数の和:640803366

約数の個数: 12

約数和(自身を含む): 219154745016

約数和(自身を除く): 62157925001

約数列:

[1, 5, 7, 35, 49, 245, 640803347, 3204016735, 4485623429, 22428117145, 31399364003, 156996820015]

約数ペア:

[(1, 156996820015), (5, 31399364003), (7, 22428117145), (35, 4485623429), (49, 3204016735), (245, 640803347)]