18893380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 43638336

約数和(自身を除く): 24744956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 547, 628, 785, 1094, 1570, 1727, 2188, 2735, 3140, 3454, 5470, 6017, 6908, 8635, 10940, 12034, 17270, 24068, 30085, 34540, 60170, 85879, 120340, 171758, 343516, 429395, 858790, 944669, 1717580, 1889338, 3778676, 4723345, 9446690, 18893380]

約数ペア:

[(1, 18893380), (2, 9446690), (4, 4723345), (5, 3778676), (10, 1889338), (11, 1717580), (20, 944669), (22, 858790), (44, 429395), (55, 343516), (110, 171758), (157, 120340), (220, 85879), (314, 60170), (547, 34540), (628, 30085), (785, 24068), (1094, 17270), (1570, 12034), (1727, 10940), (2188, 8635), (2735, 6908), (3140, 6017), (3454, 5470)]