157712080

素因数分解:

$2^4\times 5^1\times {\mathrm{1971401}}^1$

素因数の和:1971414

約数の個数: 20

約数和(自身を含む): 366680772

約数和(自身を除く): 208968692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1971401, 3942802, 7885604, 9857005, 15771208, 19714010, 31542416, 39428020, 78856040, 157712080]

約数ペア:

[(1, 157712080), (2, 78856040), (4, 39428020), (5, 31542416), (8, 19714010), (10, 15771208), (16, 9857005), (20, 7885604), (40, 3942802), (80, 1971401)]