2666875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 20

約数和(自身を含む): 3542616

約数和(自身を除く): 875741

約数列:

[1, 5, 17, 25, 85, 125, 251, 425, 625, 1255, 2125, 4267, 6275, 10625, 21335, 31375, 106675, 156875, 533375, 2666875]

約数ペア:

[(1, 2666875), (5, 533375), (17, 156875), (25, 106675), (85, 31375), (125, 21335), (251, 10625), (425, 6275), (625, 4267), (1255, 2125)]