2051222290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1213741}}^1$

素因数の和:1213774

約数の個数: 24

約数和(自身を含む): 3998066148

約数和(自身を除く): 1946843858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 1213741, 2427482, 6068705, 12137410, 15778633, 31557266, 78893165, 157786330, 205122229, 410244458, 1025611145, 2051222290]

約数ペア:

[(1, 2051222290), (2, 1025611145), (5, 410244458), (10, 205122229), (13, 157786330), (26, 78893165), (65, 31557266), (130, 15778633), (169, 12137410), (338, 6068705), (845, 2427482), (1690, 1213741)]