20500100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{7069}}^1$

素因数の和:7112

約数の個数: 36

約数和(自身を含む): 46025700

約数和(自身を除く): 25525600

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 7069, 14138, 28276, 35345, 70690, 141380, 176725, 205001, 353450, 410002, 706900, 820004, 1025005, 2050010, 4100020, 5125025, 10250050, 20500100]

約数ペア:

[(1, 20500100), (2, 10250050), (4, 5125025), (5, 4100020), (10, 2050010), (20, 1025005), (25, 820004), (29, 706900), (50, 410002), (58, 353450), (100, 205001), (116, 176725), (145, 141380), (290, 70690), (580, 35345), (725, 28276), (1450, 14138), (2900, 7069)]