218472560

素因数分解:

$2^4\times 5^1\times {\mathrm{2730907}}^1$

素因数の和:2730920

約数の個数: 20

約数和(自身を含む): 507948888

約数和(自身を除く): 289476328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2730907, 5461814, 10923628, 13654535, 21847256, 27309070, 43694512, 54618140, 109236280, 218472560]

約数ペア:

[(1, 218472560), (2, 109236280), (4, 54618140), (5, 43694512), (8, 27309070), (10, 21847256), (16, 13654535), (20, 10923628), (40, 5461814), (80, 2730907)]