2145680

素因数分解:

$2^4\times 5^1\times {\mathrm{26821}}^1$

素因数の和:26834

約数の個数: 20

約数和(自身を含む): 4988892

約数和(自身を除く): 2843212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26821, 53642, 107284, 134105, 214568, 268210, 429136, 536420, 1072840, 2145680]

約数ペア:

[(1, 2145680), (2, 1072840), (4, 536420), (5, 429136), (8, 268210), (10, 214568), (16, 134105), (20, 107284), (40, 53642), (80, 26821)]