168761680

素因数分解:

$2^4\times 5^1\times {\mathrm{2109521}}^1$

素因数の和:2109534

約数の個数: 20

約数和(自身を含む): 392371092

約数和(自身を除く): 223609412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2109521, 4219042, 8438084, 10547605, 16876168, 21095210, 33752336, 42190420, 84380840, 168761680]

約数ペア:

[(1, 168761680), (2, 84380840), (4, 42190420), (5, 33752336), (8, 21095210), (10, 16876168), (16, 10547605), (20, 8438084), (40, 4219042), (80, 2109521)]