2980625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 20

約数和(自身を含む): 3936240

約数和(自身を除く): 955615

約数列:

[1, 5, 19, 25, 95, 125, 251, 475, 625, 1255, 2375, 4769, 6275, 11875, 23845, 31375, 119225, 156875, 596125, 2980625]

約数ペア:

[(1, 2980625), (5, 596125), (19, 156875), (25, 119225), (95, 31375), (125, 23845), (251, 11875), (475, 6275), (625, 4769), (1255, 2375)]