20509550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21589}}^1$

素因数の和:21620

約数の個数: 24

約数和(自身を含む): 40157400

約数和(自身を除く): 19647850

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21589, 43178, 107945, 215890, 410191, 539725, 820382, 1079450, 2050955, 4101910, 10254775, 20509550]

約数ペア:

[(1, 20509550), (2, 10254775), (5, 4101910), (10, 2050955), (19, 1079450), (25, 820382), (38, 539725), (50, 410191), (95, 215890), (190, 107945), (475, 43178), (950, 21589)]