420155860

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{99563}}^1$

素因数の和:99783

約数の個数: 24

約数和(自身を含む): 886517856

約数和(自身を除く): 466361996

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 99563, 199126, 398252, 497815, 995630, 1991260, 21007793, 42015586, 84031172, 105038965, 210077930, 420155860]

約数ペア:

[(1, 420155860), (2, 210077930), (4, 105038965), (5, 84031172), (10, 42015586), (20, 21007793), (211, 1991260), (422, 995630), (844, 497815), (1055, 398252), (2110, 199126), (4220, 99563)]