19754980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141107}}^1$

素因数の和:141123

約数の個数: 24

約数和(自身を含む): 47412288

約数和(自身を除く): 27657308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141107, 282214, 564428, 705535, 987749, 1411070, 1975498, 2822140, 3950996, 4938745, 9877490, 19754980]

約数ペア:

[(1, 19754980), (2, 9877490), (4, 4938745), (5, 3950996), (7, 2822140), (10, 1975498), (14, 1411070), (20, 987749), (28, 705535), (35, 564428), (70, 282214), (140, 141107)]