19756940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141121}}^1$

素因数の和:141137

約数の個数: 24

約数和(自身を含む): 47416992

約数和(自身を除く): 27660052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141121, 282242, 564484, 705605, 987847, 1411210, 1975694, 2822420, 3951388, 4939235, 9878470, 19756940]

約数ペア:

[(1, 19756940), (2, 9878470), (4, 4939235), (5, 3951388), (7, 2822420), (10, 1975694), (14, 1411210), (20, 987847), (28, 705605), (35, 564484), (70, 282242), (140, 141121)]