19691870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6173}}^1$

素因数の和:6220

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 20315650

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6173, 12346, 30865, 61730, 67903, 135806, 179017, 339515, 358034, 679030, 895085, 1790170, 1969187, 3938374, 9845935, 19691870]

約数ペア:

[(1, 19691870), (2, 9845935), (5, 3938374), (10, 1969187), (11, 1790170), (22, 895085), (29, 679030), (55, 358034), (58, 339515), (110, 179017), (145, 135806), (290, 67903), (319, 61730), (638, 30865), (1595, 12346), (3190, 6173)]