2118889375

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{147401}}^1$

素因数の和:147444

約数の個数: 20

約数和(自身を含む): 2762903088

約数和(自身を除く): 644013713

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 2875, 14375, 147401, 737005, 3390223, 3685025, 16951115, 18425125, 84755575, 92125625, 423777875, 2118889375]

約数ペア:

[(1, 2118889375), (5, 423777875), (23, 92125625), (25, 84755575), (115, 18425125), (125, 16951115), (575, 3685025), (625, 3390223), (2875, 737005), (14375, 147401)]