18782480

素因数分解:

$2^4\times 5^1\times {\mathrm{234781}}^1$

素因数の和:234794

約数の個数: 20

約数和(自身を含む): 43669452

約数和(自身を除く): 24886972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234781, 469562, 939124, 1173905, 1878248, 2347810, 3756496, 4695620, 9391240, 18782480]

約数ペア:

[(1, 18782480), (2, 9391240), (4, 4695620), (5, 3756496), (8, 2347810), (10, 1878248), (16, 1173905), (20, 939124), (40, 469562), (80, 234781)]