8364040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 18927360

約数和(自身を除く): 10563320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 991, 1055, 1688, 1982, 2110, 3964, 4220, 4955, 7928, 8440, 9910, 19820, 39640, 209101, 418202, 836404, 1045505, 1672808, 2091010, 4182020, 8364040]

約数ペア:

[(1, 8364040), (2, 4182020), (4, 2091010), (5, 1672808), (8, 1045505), (10, 836404), (20, 418202), (40, 209101), (211, 39640), (422, 19820), (844, 9910), (991, 8440), (1055, 7928), (1688, 4955), (1982, 4220), (2110, 3964)]