13151875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{1913}}^1$

素因数の和:1944

約数の個数: 20

約数和(自身を含む): 17938008

約数和(自身を除く): 4786133

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 1913, 6875, 9565, 21043, 47825, 105215, 239125, 526075, 1195625, 2630375, 13151875]

約数ペア:

[(1, 13151875), (5, 2630375), (11, 1195625), (25, 526075), (55, 239125), (125, 105215), (275, 47825), (625, 21043), (1375, 9565), (1913, 6875)]