135142120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{78571}}^1$

素因数の和:78625

約数の個数: 32

約数和(自身を含む): 311145120

約数和(自身を除く): 176003000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 78571, 157142, 314284, 392855, 628568, 785710, 1571420, 3142840, 3378553, 6757106, 13514212, 16892765, 27028424, 33785530, 67571060, 135142120]

約数ペア:

[(1, 135142120), (2, 67571060), (4, 33785530), (5, 27028424), (8, 16892765), (10, 13514212), (20, 6757106), (40, 3378553), (43, 3142840), (86, 1571420), (172, 785710), (215, 628568), (344, 392855), (430, 314284), (860, 157142), (1720, 78571)]