18991490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5119}}^1$

素因数の和:5186

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 20821630

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5119, 10238, 25595, 35833, 51190, 71666, 179165, 271307, 358330, 542614, 1356535, 1899149, 2713070, 3798298, 9495745, 18991490]

約数ペア:

[(1, 18991490), (2, 9495745), (5, 3798298), (7, 2713070), (10, 1899149), (14, 1356535), (35, 542614), (53, 358330), (70, 271307), (106, 179165), (265, 71666), (371, 51190), (530, 35833), (742, 25595), (1855, 10238), (3710, 5119)]