40737680

素因数分解:

$2^4\times 5^1\times {\mathrm{509221}}^1$

素因数の和:509234

約数の個数: 20

約数和(自身を含む): 94715292

約数和(自身を除く): 53977612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509221, 1018442, 2036884, 2546105, 4073768, 5092210, 8147536, 10184420, 20368840, 40737680]

約数ペア:

[(1, 40737680), (2, 20368840), (4, 10184420), (5, 8147536), (8, 5092210), (10, 4073768), (16, 2546105), (20, 2036884), (40, 1018442), (80, 509221)]