20955860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55147}}^1$

素因数の和:55175

約数の個数: 24

約数和(自身を含む): 46324320

約数和(自身を除く): 25368460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55147, 110294, 220588, 275735, 551470, 1047793, 1102940, 2095586, 4191172, 5238965, 10477930, 20955860]

約数ペア:

[(1, 20955860), (2, 10477930), (4, 5238965), (5, 4191172), (10, 2095586), (19, 1102940), (20, 1047793), (38, 551470), (76, 275735), (95, 220588), (190, 110294), (380, 55147)]