19768420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 27930140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 419, 674, 838, 1348, 1676, 1685, 2095, 2359, 2933, 3370, 4190, 4718, 5866, 6740, 8380, 9436, 11732, 11795, 14665, 23590, 29330, 47180, 58660, 141203, 282406, 564812, 706015, 988421, 1412030, 1976842, 2824060, 3953684, 4942105, 9884210, 19768420]

約数ペア:

[(1, 19768420), (2, 9884210), (4, 4942105), (5, 3953684), (7, 2824060), (10, 1976842), (14, 1412030), (20, 988421), (28, 706015), (35, 564812), (70, 282406), (140, 141203), (337, 58660), (419, 47180), (674, 29330), (838, 23590), (1348, 14665), (1676, 11795), (1685, 11732), (2095, 9436), (2359, 8380), (2933, 6740), (3370, 5866), (4190, 4718)]