78560140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{547}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 170134272

約数和(自身を除く): 91574132

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 167, 172, 215, 334, 430, 547, 668, 835, 860, 1094, 1670, 2188, 2735, 3340, 5470, 7181, 10940, 14362, 23521, 28724, 35905, 47042, 71810, 91349, 94084, 117605, 143620, 182698, 235210, 365396, 456745, 470420, 913490, 1826980, 3928007, 7856014, 15712028, 19640035, 39280070, 78560140]

約数ペア:

[(1, 78560140), (2, 39280070), (4, 19640035), (5, 15712028), (10, 7856014), (20, 3928007), (43, 1826980), (86, 913490), (167, 470420), (172, 456745), (215, 365396), (334, 235210), (430, 182698), (547, 143620), (668, 117605), (835, 94084), (860, 91349), (1094, 71810), (1670, 47042), (2188, 35905), (2735, 28724), (3340, 23521), (5470, 14362), (7181, 10940)]