20626375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2143}}^1$

素因数の和:2176

約数の個数: 32

約数和(自身を含む): 32108544

約数和(自身を除く): 11482169

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 2143, 9625, 10715, 15001, 23573, 53575, 75005, 117865, 165011, 267875, 375025, 589325, 825055, 1875125, 2946625, 4125275, 20626375]

約数ペア:

[(1, 20626375), (5, 4125275), (7, 2946625), (11, 1875125), (25, 825055), (35, 589325), (55, 375025), (77, 267875), (125, 165011), (175, 117865), (275, 75005), (385, 53575), (875, 23573), (1375, 15001), (1925, 10715), (2143, 9625)]