1281439345

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{1531}}^1$

素因数の和:1825

約数の個数: 32

約数和(自身を含む): 1674414720

約数和(自身を除く): 392975375

約数列:

[1, 5, 17, 43, 85, 215, 229, 731, 1145, 1531, 3655, 3893, 7655, 9847, 19465, 26027, 49235, 65833, 130135, 167399, 329165, 350599, 836995, 1119161, 1752995, 5595805, 5960183, 15075757, 29800915, 75378785, 256287869, 1281439345]

約数ペア:

[(1, 1281439345), (5, 256287869), (17, 75378785), (43, 29800915), (85, 15075757), (215, 5960183), (229, 5595805), (731, 1752995), (1145, 1119161), (1531, 836995), (3655, 350599), (3893, 329165), (7655, 167399), (9847, 130135), (19465, 65833), (26027, 49235)]