289721390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{4138877}}^1$

素因数の和:4138891

約数の個数: 16

約数和(自身を含む): 595998432

約数和(自身を除く): 306277042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 4138877, 8277754, 20694385, 28972139, 41388770, 57944278, 144860695, 289721390]

約数ペア:

[(1, 289721390), (2, 144860695), (5, 57944278), (7, 41388770), (10, 28972139), (14, 20694385), (35, 8277754), (70, 4138877)]