28620040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3391}}^1$

素因数の和:3613

約数の個数: 32

約数和(自身を含む): 64719360

約数和(自身を除く): 36099320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 3391, 4220, 6782, 8440, 13564, 16955, 27128, 33910, 67820, 135640, 715501, 1431002, 2862004, 3577505, 5724008, 7155010, 14310020, 28620040]

約数ペア:

[(1, 28620040), (2, 14310020), (4, 7155010), (5, 5724008), (8, 3577505), (10, 2862004), (20, 1431002), (40, 715501), (211, 135640), (422, 67820), (844, 33910), (1055, 27128), (1688, 16955), (2110, 13564), (3391, 8440), (4220, 6782)]