219320440

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{12377}}^1$

素因数の和:12831

約数の個数: 32

約数和(自身を含む): 494624880

約数和(自身を除く): 275304440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 8860, 12377, 17720, 24754, 49508, 61885, 99016, 123770, 247540, 495080, 5483011, 10966022, 21932044, 27415055, 43864088, 54830110, 109660220, 219320440]

約数ペア:

[(1, 219320440), (2, 109660220), (4, 54830110), (5, 43864088), (8, 27415055), (10, 21932044), (20, 10966022), (40, 5483011), (443, 495080), (886, 247540), (1772, 123770), (2215, 99016), (3544, 61885), (4430, 49508), (8860, 24754), (12377, 17720)]