18660065

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{379}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 23073600

約数和(自身を除く): 4413535

約数列:

[1, 5, 43, 215, 229, 379, 1145, 1895, 9847, 16297, 49235, 81485, 86791, 433955, 3732013, 18660065]

約数ペア:

[(1, 18660065), (5, 3732013), (43, 433955), (215, 86791), (229, 81485), (379, 49235), (1145, 16297), (1895, 9847)]