128706540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{2145109}}^1$

素因数の和:2145121

約数の個数: 24

約数和(自身を含む): 360378480

約数和(自身を除く): 231671940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 2145109, 4290218, 6435327, 8580436, 10725545, 12870654, 21451090, 25741308, 32176635, 42902180, 64353270, 128706540]

約数ペア:

[(1, 128706540), (2, 64353270), (3, 42902180), (4, 32176635), (5, 25741308), (6, 21451090), (10, 12870654), (12, 10725545), (15, 8580436), (20, 6435327), (30, 4290218), (60, 2145109)]