156696220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{71879}}^1$

素因数の和:71997

約数の個数: 24

約数和(自身を含む): 332085600

約数和(自身を除く): 175389380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 71879, 143758, 287516, 359395, 718790, 1437580, 7834811, 15669622, 31339244, 39174055, 78348110, 156696220]

約数ペア:

[(1, 156696220), (2, 78348110), (4, 39174055), (5, 31339244), (10, 15669622), (20, 7834811), (109, 1437580), (218, 718790), (436, 359395), (545, 287516), (1090, 143758), (2180, 71879)]