20422325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^2$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 31881888

約数和(自身を除く): 11459563

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 103, 175, 275, 385, 515, 721, 1133, 1925, 2575, 3605, 5665, 7931, 10609, 18025, 28325, 39655, 53045, 74263, 116699, 198275, 265225, 371315, 583495, 816893, 1856575, 2917475, 4084465, 20422325]

約数ペア:

[(1, 20422325), (5, 4084465), (7, 2917475), (11, 1856575), (25, 816893), (35, 583495), (55, 371315), (77, 265225), (103, 198275), (175, 116699), (275, 74263), (385, 53045), (515, 39655), (721, 28325), (1133, 18025), (1925, 10609), (2575, 7931), (3605, 5665)]