23457890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{21521}}^1$

素因数の和:21637

約数の個数: 16

約数和(自身を含む): 42613560

約数和(自身を除く): 19155670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 21521, 43042, 107605, 215210, 2345789, 4691578, 11728945, 23457890]

約数ペア:

[(1, 23457890), (2, 11728945), (5, 4691578), (10, 2345789), (109, 215210), (218, 107605), (545, 43042), (1090, 21521)]