208881860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41281}}^1$

素因数の和:41324

約数の個数: 48

約数和(自身を含む): 499347072

約数和(自身を除く): 290465212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 41281, 82562, 165124, 206405, 412810, 454091, 825620, 908182, 949463, 1816364, 1898926, 2270455, 3797852, 4540910, 4747315, 9081820, 9494630, 10444093, 18989260, 20888186, 41776372, 52220465, 104440930, 208881860]

約数ペア:

[(1, 208881860), (2, 104440930), (4, 52220465), (5, 41776372), (10, 20888186), (11, 18989260), (20, 10444093), (22, 9494630), (23, 9081820), (44, 4747315), (46, 4540910), (55, 3797852), (92, 2270455), (110, 1898926), (115, 1816364), (220, 949463), (230, 908182), (253, 825620), (460, 454091), (506, 412810), (1012, 206405), (1265, 165124), (2530, 82562), (5060, 41281)]