19450270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2152

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20869730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 1999, 3998, 4865, 9730, 9995, 13993, 19990, 27986, 69965, 139930, 277861, 555722, 1389305, 1945027, 2778610, 3890054, 9725135, 19450270]

約数ペア:

[(1, 19450270), (2, 9725135), (5, 3890054), (7, 2778610), (10, 1945027), (14, 1389305), (35, 555722), (70, 277861), (139, 139930), (278, 69965), (695, 27986), (973, 19990), (1390, 13993), (1946, 9995), (1999, 9730), (3998, 4865)]