129624280

素因数分解:

$2^3\times 5^1\times {\mathrm{3240607}}^1$

素因数の和:3240618

約数の個数: 16

約数和(自身を含む): 291654720

約数和(自身を除く): 162030440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3240607, 6481214, 12962428, 16203035, 25924856, 32406070, 64812140, 129624280]

約数ペア:

[(1, 129624280), (2, 64812140), (4, 32406070), (5, 25924856), (8, 16203035), (10, 12962428), (20, 6481214), (40, 3240607)]