163950020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{630577}}^1$

素因数の和:630599

約数の個数: 24

約数和(自身を含む): 370779864

約数和(自身を除く): 206829844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 630577, 1261154, 2522308, 3152885, 6305770, 8197501, 12611540, 16395002, 32790004, 40987505, 81975010, 163950020]

約数ペア:

[(1, 163950020), (2, 81975010), (4, 40987505), (5, 32790004), (10, 16395002), (13, 12611540), (20, 8197501), (26, 6305770), (52, 3152885), (65, 2522308), (130, 1261154), (260, 630577)]