19685420

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3659}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 41504400

約数和(自身を除く): 21818980

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3659, 5380, 7318, 14636, 18295, 36590, 73180, 984271, 1968542, 3937084, 4921355, 9842710, 19685420]

約数ペア:

[(1, 19685420), (2, 9842710), (4, 4921355), (5, 3937084), (10, 1968542), (20, 984271), (269, 73180), (538, 36590), (1076, 18295), (1345, 14636), (2690, 7318), (3659, 5380)]