181389080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{41603}}^1$

素因数の和:41723

約数の個数: 32

約数和(自身を含む): 411879600

約数和(自身を除く): 230490520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 41603, 83206, 166412, 208015, 332824, 416030, 832060, 1664120, 4534727, 9069454, 18138908, 22673635, 36277816, 45347270, 90694540, 181389080]

約数ペア:

[(1, 181389080), (2, 90694540), (4, 45347270), (5, 36277816), (8, 22673635), (10, 18138908), (20, 9069454), (40, 4534727), (109, 1664120), (218, 832060), (436, 416030), (545, 332824), (872, 208015), (1090, 166412), (2180, 83206), (4360, 41603)]