7850220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18691}}^1$

素因数の和:18710

約数の個数: 48

約数和(自身を含む): 25122048

約数和(自身を除く): 17271828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18691, 37382, 56073, 74764, 93455, 112146, 130837, 186910, 224292, 261674, 280365, 373820, 392511, 523348, 560730, 654185, 785022, 1121460, 1308370, 1570044, 1962555, 2616740, 3925110, 7850220]

約数ペア:

[(1, 7850220), (2, 3925110), (3, 2616740), (4, 1962555), (5, 1570044), (6, 1308370), (7, 1121460), (10, 785022), (12, 654185), (14, 560730), (15, 523348), (20, 392511), (21, 373820), (28, 280365), (30, 261674), (35, 224292), (42, 186910), (60, 130837), (70, 112146), (84, 93455), (105, 74764), (140, 56073), (210, 37382), (420, 18691)]