208021250

素因数分解:

$2^1\times 5^4\times {\mathrm{166417}}^1$

素因数の和:166439

約数の個数: 20

約数和(自身を含む): 389917374

約数和(自身を除く): 181896124

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 166417, 332834, 832085, 1664170, 4160425, 8320850, 20802125, 41604250, 104010625, 208021250]

約数ペア:

[(1, 208021250), (2, 104010625), (5, 41604250), (10, 20802125), (25, 8320850), (50, 4160425), (125, 1664170), (250, 832085), (625, 332834), (1250, 166417)]