4078120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2371}}^1$

素因数の和:2425

約数の個数: 32

約数和(自身を含む): 9393120

約数和(自身を除く): 5315000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2371, 4742, 9484, 11855, 18968, 23710, 47420, 94840, 101953, 203906, 407812, 509765, 815624, 1019530, 2039060, 4078120]

約数ペア:

[(1, 4078120), (2, 2039060), (4, 1019530), (5, 815624), (8, 509765), (10, 407812), (20, 203906), (40, 101953), (43, 94840), (86, 47420), (172, 23710), (215, 18968), (344, 11855), (430, 9484), (860, 4742), (1720, 2371)]