19180240

素因数分解:

$2^4\times 5^1\times {\mathrm{239753}}^1$

素因数の和:239766

約数の個数: 20

約数和(自身を含む): 44594244

約数和(自身を除く): 25414004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239753, 479506, 959012, 1198765, 1918024, 2397530, 3836048, 4795060, 9590120, 19180240]

約数ペア:

[(1, 19180240), (2, 9590120), (4, 4795060), (5, 3836048), (8, 2397530), (10, 1918024), (16, 1198765), (20, 959012), (40, 479506), (80, 239753)]