19162140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 53857440

約数和(自身を除く): 34695300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 821, 1167, 1556, 1642, 1945, 2334, 2463, 3284, 3890, 4105, 4668, 4926, 5835, 7780, 8210, 9852, 11670, 12315, 16420, 23340, 24630, 49260, 319369, 638738, 958107, 1277476, 1596845, 1916214, 3193690, 3832428, 4790535, 6387380, 9581070, 19162140]

約数ペア:

[(1, 19162140), (2, 9581070), (3, 6387380), (4, 4790535), (5, 3832428), (6, 3193690), (10, 1916214), (12, 1596845), (15, 1277476), (20, 958107), (30, 638738), (60, 319369), (389, 49260), (778, 24630), (821, 23340), (1167, 16420), (1556, 12315), (1642, 11670), (1945, 9852), (2334, 8210), (2463, 7780), (3284, 5835), (3890, 4926), (4105, 4668)]