221938280

素因数分解:

$2^3\times 5^1\times {\mathrm{5548457}}^1$

素因数の和:5548468

約数の個数: 16

約数和(自身を含む): 499361220

約数和(自身を除く): 277422940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5548457, 11096914, 22193828, 27742285, 44387656, 55484570, 110969140, 221938280]

約数ペア:

[(1, 221938280), (2, 110969140), (4, 55484570), (5, 44387656), (8, 27742285), (10, 22193828), (20, 11096914), (40, 5548457)]