19491880

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1163}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 43999200

約数和(自身を除く): 24507320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1163, 1676, 2095, 2326, 3352, 4190, 4652, 5815, 8380, 9304, 11630, 16760, 23260, 46520, 487297, 974594, 1949188, 2436485, 3898376, 4872970, 9745940, 19491880]

約数ペア:

[(1, 19491880), (2, 9745940), (4, 4872970), (5, 3898376), (8, 2436485), (10, 1949188), (20, 974594), (40, 487297), (419, 46520), (838, 23260), (1163, 16760), (1676, 11630), (2095, 9304), (2326, 8380), (3352, 5815), (4190, 4652)]