18782890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1777}}^1$

素因数の和:1942

約数の個数: 32

約数和(自身を含む): 38916864

約数和(自身を除く): 20133974

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 151, 302, 755, 1057, 1510, 1777, 2114, 3554, 5285, 8885, 10570, 12439, 17770, 24878, 62195, 124390, 268327, 536654, 1341635, 1878289, 2683270, 3756578, 9391445, 18782890]

約数ペア:

[(1, 18782890), (2, 9391445), (5, 3756578), (7, 2683270), (10, 1878289), (14, 1341635), (35, 536654), (70, 268327), (151, 124390), (302, 62195), (755, 24878), (1057, 17770), (1510, 12439), (1777, 10570), (2114, 8885), (3554, 5285)]