18616880

素因数分解:

$2^4\times 5^1\times {\mathrm{232711}}^1$

素因数の和:232724

約数の個数: 20

約数和(自身を含む): 43284432

約数和(自身を除く): 24667552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 232711, 465422, 930844, 1163555, 1861688, 2327110, 3723376, 4654220, 9308440, 18616880]

約数ペア:

[(1, 18616880), (2, 9308440), (4, 4654220), (5, 3723376), (8, 2327110), (10, 1861688), (16, 1163555), (20, 930844), (40, 465422), (80, 232711)]