19949380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90679}}^1$

素因数の和:90699

約数の個数: 24

約数和(自身を含む): 45702720

約数和(自身を除く): 25753340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90679, 181358, 362716, 453395, 906790, 997469, 1813580, 1994938, 3989876, 4987345, 9974690, 19949380]

約数ペア:

[(1, 19949380), (2, 9974690), (4, 4987345), (5, 3989876), (10, 1994938), (11, 1813580), (20, 997469), (22, 906790), (44, 453395), (55, 362716), (110, 181358), (220, 90679)]