51680360

素因数分解:

$2^3\times 5^1\times {\mathrm{1292009}}^1$

素因数の和:1292020

約数の個数: 16

約数和(自身を含む): 116280900

約数和(自身を除く): 64600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1292009, 2584018, 5168036, 6460045, 10336072, 12920090, 25840180, 51680360]

約数ペア:

[(1, 51680360), (2, 25840180), (4, 12920090), (5, 10336072), (8, 6460045), (10, 5168036), (20, 2584018), (40, 1292009)]