20079745

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 28984320

約数和(自身を除く): 8904575

約数列:

[1, 5, 7, 29, 35, 73, 145, 203, 271, 365, 511, 1015, 1355, 1897, 2117, 2555, 7859, 9485, 10585, 14819, 19783, 39295, 55013, 74095, 98915, 138481, 275065, 573707, 692405, 2868535, 4015949, 20079745]

約数ペア:

[(1, 20079745), (5, 4015949), (7, 2868535), (29, 692405), (35, 573707), (73, 275065), (145, 138481), (203, 98915), (271, 74095), (365, 55013), (511, 39295), (1015, 19783), (1355, 14819), (1897, 10585), (2117, 9485), (2555, 7859)]