2031580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 4300128

約数和(自身を除く): 2268548

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 647, 785, 1294, 1570, 2588, 3140, 3235, 6470, 12940, 101579, 203158, 406316, 507895, 1015790, 2031580]

約数ペア:

[(1, 2031580), (2, 1015790), (4, 507895), (5, 406316), (10, 203158), (20, 101579), (157, 12940), (314, 6470), (628, 3235), (647, 3140), (785, 2588), (1294, 1570)]