65385160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39869}}^1$

素因数の和:39921

約数の個数: 32

約数和(自身を含む): 150708600

約数和(自身を除く): 85323440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39869, 79738, 159476, 199345, 318952, 398690, 797380, 1594760, 1634629, 3269258, 6538516, 8173145, 13077032, 16346290, 32692580, 65385160]

約数ペア:

[(1, 65385160), (2, 32692580), (4, 16346290), (5, 13077032), (8, 8173145), (10, 6538516), (20, 3269258), (40, 1634629), (41, 1594760), (82, 797380), (164, 398690), (205, 318952), (328, 199345), (410, 159476), (820, 79738), (1640, 39869)]