78724840

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{17417}}^1$

素因数の和:17541

約数の個数: 32

約数和(自身を含む): 178708680

約数和(自身を除く): 99983840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 17417, 34834, 69668, 87085, 139336, 174170, 348340, 696680, 1968121, 3936242, 7872484, 9840605, 15744968, 19681210, 39362420, 78724840]

約数ペア:

[(1, 78724840), (2, 39362420), (4, 19681210), (5, 15744968), (8, 9840605), (10, 7872484), (20, 3936242), (40, 1968121), (113, 696680), (226, 348340), (452, 174170), (565, 139336), (904, 87085), (1130, 69668), (2260, 34834), (4520, 17417)]