18479980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{15661}}^1$

素因数の和:15729

約数の個数: 24

約数和(自身を含む): 39468240

約数和(自身を除く): 20988260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 15661, 31322, 62644, 78305, 156610, 313220, 923999, 1847998, 3695996, 4619995, 9239990, 18479980]

約数ペア:

[(1, 18479980), (2, 9239990), (4, 4619995), (5, 3695996), (10, 1847998), (20, 923999), (59, 313220), (118, 156610), (236, 78305), (295, 62644), (590, 31322), (1180, 15661)]