20930170

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72173}}^1$

素因数の和:72209

約数の個数: 16

約数和(自身を含む): 38973960

約数和(自身を除く): 18043790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72173, 144346, 360865, 721730, 2093017, 4186034, 10465085, 20930170]

約数ペア:

[(1, 20930170), (2, 10465085), (5, 4186034), (10, 2093017), (29, 721730), (58, 360865), (145, 144346), (290, 72173)]