17997140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128551}}^1$

素因数の和:128567

約数の個数: 24

約数和(自身を含む): 43193472

約数和(自身を除く): 25196332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128551, 257102, 514204, 642755, 899857, 1285510, 1799714, 2571020, 3599428, 4499285, 8998570, 17997140]

約数ペア:

[(1, 17997140), (2, 8998570), (4, 4499285), (5, 3599428), (7, 2571020), (10, 1799714), (14, 1285510), (20, 899857), (28, 642755), (35, 514204), (70, 257102), (140, 128551)]