66871805

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 111476736

約数和(自身を除く): 44604931

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 143, 155, 217, 341, 385, 403, 431, 455, 715, 1001, 1085, 1705, 2015, 2155, 2387, 2821, 3017, 4433, 4741, 5005, 5603, 11935, 13361, 14105, 15085, 22165, 23705, 28015, 31031, 33187, 39221, 61633, 66805, 93527, 146971, 155155, 165935, 173693, 196105, 308165, 431431, 467635, 734855, 868465, 1028797, 1215851, 1910623, 2157155, 5143985, 6079255, 9553115, 13374361, 66871805]

約数ペア:

[(1, 66871805), (5, 13374361), (7, 9553115), (11, 6079255), (13, 5143985), (31, 2157155), (35, 1910623), (55, 1215851), (65, 1028797), (77, 868465), (91, 734855), (143, 467635), (155, 431431), (217, 308165), (341, 196105), (385, 173693), (403, 165935), (431, 155155), (455, 146971), (715, 93527), (1001, 66805), (1085, 61633), (1705, 39221), (2015, 33187), (2155, 31031), (2387, 28015), (2821, 23705), (3017, 22165), (4433, 15085), (4741, 14105), (5005, 13361), (5603, 11935)]