2129120720

素因数分解:

$2^4\times 5^1\times {\mathrm{26614009}}^1$

素因数の和:26614022

約数の個数: 20

約数和(自身を含む): 4950205860

約数和(自身を除く): 2821085140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26614009, 53228018, 106456036, 133070045, 212912072, 266140090, 425824144, 532280180, 1064560360, 2129120720]

約数ペア:

[(1, 2129120720), (2, 1064560360), (4, 532280180), (5, 425824144), (8, 266140090), (10, 212912072), (16, 133070045), (20, 106456036), (40, 53228018), (80, 26614009)]