18958120

素因数分解:

$2^3\times 5^1\times {\mathrm{473953}}^1$

素因数の和:473964

約数の個数: 16

約数和(自身を含む): 42655860

約数和(自身を除く): 23697740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 473953, 947906, 1895812, 2369765, 3791624, 4739530, 9479060, 18958120]

約数ペア:

[(1, 18958120), (2, 9479060), (4, 4739530), (5, 3791624), (8, 2369765), (10, 1895812), (20, 947906), (40, 473953)]