223173520

素因数分解:

$2^4\times 5^1\times {\mathrm{2789669}}^1$

素因数の和:2789682

約数の個数: 20

約数和(自身を含む): 518878620

約数和(自身を除く): 295705100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2789669, 5579338, 11158676, 13948345, 22317352, 27896690, 44634704, 55793380, 111586760, 223173520]

約数ペア:

[(1, 223173520), (2, 111586760), (4, 55793380), (5, 44634704), (8, 27896690), (10, 22317352), (16, 13948345), (20, 11158676), (40, 5579338), (80, 2789669)]