129209900

素因数分解:

$2^2\times 5^2\times {\mathrm{1292099}}^1$

素因数の和:1292113

約数の個数: 18

約数和(自身を含む): 280385700

約数和(自身を除く): 151175800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1292099, 2584198, 5168396, 6460495, 12920990, 25841980, 32302475, 64604950, 129209900]

約数ペア:

[(1, 129209900), (2, 64604950), (4, 32302475), (5, 25841980), (10, 12920990), (20, 6460495), (25, 5168396), (50, 2584198), (100, 1292099)]