254369620

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{19477}}^1$

素因数の和:20139

約数の個数: 24

約数和(自身を含む): 535021704

約数和(自身を除く): 280652084

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 19477, 38954, 77908, 97385, 194770, 389540, 12718481, 25436962, 50873924, 63592405, 127184810, 254369620]

約数ペア:

[(1, 254369620), (2, 127184810), (4, 63592405), (5, 50873924), (10, 25436962), (20, 12718481), (653, 389540), (1306, 194770), (2612, 97385), (3265, 77908), (6530, 38954), (13060, 19477)]